Index: lams_admin/web/WEB-INF/tags/Page.tag
===================================================================
diff -u -r876e644c066e81c2721ffa085fd12f386e2f3bb6 -r1eb2143815418c6dc14f115acc6cc1ce7c1fed32
--- lams_admin/web/WEB-INF/tags/Page.tag	(.../Page.tag)	(revision 876e644c066e81c2721ffa085fd12f386e2f3bb6)
+++ lams_admin/web/WEB-INF/tags/Page.tag	(.../Page.tag)	(revision 1eb2143815418c6dc14f115acc6cc1ce7c1fed32)
@@ -163,16 +163,19 @@
 				$('#sidebar').show();
 			}
 
-			function preventLearnerAutosaveFromMultipleTabs(autosaveInterval) {
+			function preventLearnerAutosaveFromMultipleTabs(autosaveWindowId, autosaveInterval) {
 				let currentTime = new Date().getTime(),
-					lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp');
+						lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp'),
+						lamsAutosaveWindowId = +localStorage.getItem('lamsAutosaveWindowId');
 				// check if autosave does not happen too often
-				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime) {
+				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime
+						&& lamsAutosaveWindowId && lamsAutosaveWindowId != autosaveWindowId) {
 					// this label is required only in tool which implement autosave
 					alert('<spring:escapeBody javaScriptEscape="true"><fmt:message key="label.prevent.learner.autosave.mutliple.tabs" /></spring:escapeBody>');
 					return false;
 				}
 				localStorage.setItem('lamsAutosaveTimestamp', currentTime);
+				localStorage.setItem('lamsAutosaveWindowId', autosaveWindowId);
 				return true;
 			}
 			
Index: lams_admin/web/WEB-INF/tags/Page5.tag
===================================================================
diff -u -r876e644c066e81c2721ffa085fd12f386e2f3bb6 -r1eb2143815418c6dc14f115acc6cc1ce7c1fed32
--- lams_admin/web/WEB-INF/tags/Page5.tag	(.../Page5.tag)	(revision 876e644c066e81c2721ffa085fd12f386e2f3bb6)
+++ lams_admin/web/WEB-INF/tags/Page5.tag	(.../Page5.tag)	(revision 1eb2143815418c6dc14f115acc6cc1ce7c1fed32)
@@ -165,16 +165,19 @@
 				$('#sidebar').show();
 			}
 
-			function preventLearnerAutosaveFromMultipleTabs(autosaveInterval) {
+			function preventLearnerAutosaveFromMultipleTabs(autosaveWindowId, autosaveInterval) {
 				let currentTime = new Date().getTime(),
-					lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp');
+						lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp'),
+						lamsAutosaveWindowId = +localStorage.getItem('lamsAutosaveWindowId');
 				// check if autosave does not happen too often
-				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime) {
+				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime
+						&& lamsAutosaveWindowId && lamsAutosaveWindowId != autosaveWindowId) {
 					// this label is required only in tool which implement autosave
 					alert('<spring:escapeBody javaScriptEscape="true"><fmt:message key="label.prevent.learner.autosave.mutliple.tabs" /></spring:escapeBody>');
 					return false;
 				}
 				localStorage.setItem('lamsAutosaveTimestamp', currentTime);
+				localStorage.setItem('lamsAutosaveWindowId', autosaveWindowId);
 				return true;
 			}
 
Index: lams_central/web/WEB-INF/tags/Page.tag
===================================================================
diff -u -r876e644c066e81c2721ffa085fd12f386e2f3bb6 -r1eb2143815418c6dc14f115acc6cc1ce7c1fed32
--- lams_central/web/WEB-INF/tags/Page.tag	(.../Page.tag)	(revision 876e644c066e81c2721ffa085fd12f386e2f3bb6)
+++ lams_central/web/WEB-INF/tags/Page.tag	(.../Page.tag)	(revision 1eb2143815418c6dc14f115acc6cc1ce7c1fed32)
@@ -163,16 +163,19 @@
 				$('#sidebar').show();
 			}
 
-			function preventLearnerAutosaveFromMultipleTabs(autosaveInterval) {
+			function preventLearnerAutosaveFromMultipleTabs(autosaveWindowId, autosaveInterval) {
 				let currentTime = new Date().getTime(),
-					lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp');
+						lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp'),
+						lamsAutosaveWindowId = +localStorage.getItem('lamsAutosaveWindowId');
 				// check if autosave does not happen too often
-				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime) {
+				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime
+						&& lamsAutosaveWindowId && lamsAutosaveWindowId != autosaveWindowId) {
 					// this label is required only in tool which implement autosave
 					alert('<spring:escapeBody javaScriptEscape="true"><fmt:message key="label.prevent.learner.autosave.mutliple.tabs" /></spring:escapeBody>');
 					return false;
 				}
 				localStorage.setItem('lamsAutosaveTimestamp', currentTime);
+				localStorage.setItem('lamsAutosaveWindowId', autosaveWindowId);
 				return true;
 			}
 			
Index: lams_central/web/WEB-INF/tags/Page5.tag
===================================================================
diff -u -r876e644c066e81c2721ffa085fd12f386e2f3bb6 -r1eb2143815418c6dc14f115acc6cc1ce7c1fed32
--- lams_central/web/WEB-INF/tags/Page5.tag	(.../Page5.tag)	(revision 876e644c066e81c2721ffa085fd12f386e2f3bb6)
+++ lams_central/web/WEB-INF/tags/Page5.tag	(.../Page5.tag)	(revision 1eb2143815418c6dc14f115acc6cc1ce7c1fed32)
@@ -165,16 +165,19 @@
 				$('#sidebar').show();
 			}
 
-			function preventLearnerAutosaveFromMultipleTabs(autosaveInterval) {
+			function preventLearnerAutosaveFromMultipleTabs(autosaveWindowId, autosaveInterval) {
 				let currentTime = new Date().getTime(),
-					lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp');
+						lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp'),
+						lamsAutosaveWindowId = +localStorage.getItem('lamsAutosaveWindowId');
 				// check if autosave does not happen too often
-				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime) {
+				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime
+						&& lamsAutosaveWindowId && lamsAutosaveWindowId != autosaveWindowId) {
 					// this label is required only in tool which implement autosave
 					alert('<spring:escapeBody javaScriptEscape="true"><fmt:message key="label.prevent.learner.autosave.mutliple.tabs" /></spring:escapeBody>');
 					return false;
 				}
 				localStorage.setItem('lamsAutosaveTimestamp', currentTime);
+				localStorage.setItem('lamsAutosaveWindowId', autosaveWindowId);
 				return true;
 			}
 
Index: lams_gradebook/web/WEB-INF/tags/Page.tag
===================================================================
diff -u -r876e644c066e81c2721ffa085fd12f386e2f3bb6 -r1eb2143815418c6dc14f115acc6cc1ce7c1fed32
--- lams_gradebook/web/WEB-INF/tags/Page.tag	(.../Page.tag)	(revision 876e644c066e81c2721ffa085fd12f386e2f3bb6)
+++ lams_gradebook/web/WEB-INF/tags/Page.tag	(.../Page.tag)	(revision 1eb2143815418c6dc14f115acc6cc1ce7c1fed32)
@@ -163,16 +163,19 @@
 				$('#sidebar').show();
 			}
 
-			function preventLearnerAutosaveFromMultipleTabs(autosaveInterval) {
+			function preventLearnerAutosaveFromMultipleTabs(autosaveWindowId, autosaveInterval) {
 				let currentTime = new Date().getTime(),
-					lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp');
+						lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp'),
+						lamsAutosaveWindowId = +localStorage.getItem('lamsAutosaveWindowId');
 				// check if autosave does not happen too often
-				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime) {
+				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime
+						&& lamsAutosaveWindowId && lamsAutosaveWindowId != autosaveWindowId) {
 					// this label is required only in tool which implement autosave
 					alert('<spring:escapeBody javaScriptEscape="true"><fmt:message key="label.prevent.learner.autosave.mutliple.tabs" /></spring:escapeBody>');
 					return false;
 				}
 				localStorage.setItem('lamsAutosaveTimestamp', currentTime);
+				localStorage.setItem('lamsAutosaveWindowId', autosaveWindowId);
 				return true;
 			}
 			
Index: lams_gradebook/web/WEB-INF/tags/Page5.tag
===================================================================
diff -u -r876e644c066e81c2721ffa085fd12f386e2f3bb6 -r1eb2143815418c6dc14f115acc6cc1ce7c1fed32
--- lams_gradebook/web/WEB-INF/tags/Page5.tag	(.../Page5.tag)	(revision 876e644c066e81c2721ffa085fd12f386e2f3bb6)
+++ lams_gradebook/web/WEB-INF/tags/Page5.tag	(.../Page5.tag)	(revision 1eb2143815418c6dc14f115acc6cc1ce7c1fed32)
@@ -165,16 +165,19 @@
 				$('#sidebar').show();
 			}
 
-			function preventLearnerAutosaveFromMultipleTabs(autosaveInterval) {
+			function preventLearnerAutosaveFromMultipleTabs(autosaveWindowId, autosaveInterval) {
 				let currentTime = new Date().getTime(),
-					lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp');
+						lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp'),
+						lamsAutosaveWindowId = +localStorage.getItem('lamsAutosaveWindowId');
 				// check if autosave does not happen too often
-				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime) {
+				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime
+						&& lamsAutosaveWindowId && lamsAutosaveWindowId != autosaveWindowId) {
 					// this label is required only in tool which implement autosave
 					alert('<spring:escapeBody javaScriptEscape="true"><fmt:message key="label.prevent.learner.autosave.mutliple.tabs" /></spring:escapeBody>');
 					return false;
 				}
 				localStorage.setItem('lamsAutosaveTimestamp', currentTime);
+				localStorage.setItem('lamsAutosaveWindowId', autosaveWindowId);
 				return true;
 			}
 
Index: lams_learning/web/WEB-INF/tags/Page.tag
===================================================================
diff -u -r876e644c066e81c2721ffa085fd12f386e2f3bb6 -r1eb2143815418c6dc14f115acc6cc1ce7c1fed32
--- lams_learning/web/WEB-INF/tags/Page.tag	(.../Page.tag)	(revision 876e644c066e81c2721ffa085fd12f386e2f3bb6)
+++ lams_learning/web/WEB-INF/tags/Page.tag	(.../Page.tag)	(revision 1eb2143815418c6dc14f115acc6cc1ce7c1fed32)
@@ -163,16 +163,19 @@
 				$('#sidebar').show();
 			}
 
-			function preventLearnerAutosaveFromMultipleTabs(autosaveInterval) {
+			function preventLearnerAutosaveFromMultipleTabs(autosaveWindowId, autosaveInterval) {
 				let currentTime = new Date().getTime(),
-					lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp');
+						lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp'),
+						lamsAutosaveWindowId = +localStorage.getItem('lamsAutosaveWindowId');
 				// check if autosave does not happen too often
-				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime) {
+				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime
+						&& lamsAutosaveWindowId && lamsAutosaveWindowId != autosaveWindowId) {
 					// this label is required only in tool which implement autosave
 					alert('<spring:escapeBody javaScriptEscape="true"><fmt:message key="label.prevent.learner.autosave.mutliple.tabs" /></spring:escapeBody>');
 					return false;
 				}
 				localStorage.setItem('lamsAutosaveTimestamp', currentTime);
+				localStorage.setItem('lamsAutosaveWindowId', autosaveWindowId);
 				return true;
 			}
 			
Index: lams_learning/web/WEB-INF/tags/Page5.tag
===================================================================
diff -u -r876e644c066e81c2721ffa085fd12f386e2f3bb6 -r1eb2143815418c6dc14f115acc6cc1ce7c1fed32
--- lams_learning/web/WEB-INF/tags/Page5.tag	(.../Page5.tag)	(revision 876e644c066e81c2721ffa085fd12f386e2f3bb6)
+++ lams_learning/web/WEB-INF/tags/Page5.tag	(.../Page5.tag)	(revision 1eb2143815418c6dc14f115acc6cc1ce7c1fed32)
@@ -165,16 +165,19 @@
 				$('#sidebar').show();
 			}
 
-			function preventLearnerAutosaveFromMultipleTabs(autosaveInterval) {
+			function preventLearnerAutosaveFromMultipleTabs(autosaveWindowId, autosaveInterval) {
 				let currentTime = new Date().getTime(),
-					lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp');
+						lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp'),
+						lamsAutosaveWindowId = +localStorage.getItem('lamsAutosaveWindowId');
 				// check if autosave does not happen too often
-				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime) {
+				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime
+						&& lamsAutosaveWindowId && lamsAutosaveWindowId != autosaveWindowId) {
 					// this label is required only in tool which implement autosave
 					alert('<spring:escapeBody javaScriptEscape="true"><fmt:message key="label.prevent.learner.autosave.mutliple.tabs" /></spring:escapeBody>');
 					return false;
 				}
 				localStorage.setItem('lamsAutosaveTimestamp', currentTime);
+				localStorage.setItem('lamsAutosaveWindowId', autosaveWindowId);
 				return true;
 			}
 
Index: lams_monitoring/web/WEB-INF/tags/Page.tag
===================================================================
diff -u -r876e644c066e81c2721ffa085fd12f386e2f3bb6 -r1eb2143815418c6dc14f115acc6cc1ce7c1fed32
--- lams_monitoring/web/WEB-INF/tags/Page.tag	(.../Page.tag)	(revision 876e644c066e81c2721ffa085fd12f386e2f3bb6)
+++ lams_monitoring/web/WEB-INF/tags/Page.tag	(.../Page.tag)	(revision 1eb2143815418c6dc14f115acc6cc1ce7c1fed32)
@@ -163,16 +163,19 @@
 				$('#sidebar').show();
 			}
 
-			function preventLearnerAutosaveFromMultipleTabs(autosaveInterval) {
+			function preventLearnerAutosaveFromMultipleTabs(autosaveWindowId, autosaveInterval) {
 				let currentTime = new Date().getTime(),
-					lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp');
+						lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp'),
+						lamsAutosaveWindowId = +localStorage.getItem('lamsAutosaveWindowId');
 				// check if autosave does not happen too often
-				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime) {
+				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime
+						&& lamsAutosaveWindowId && lamsAutosaveWindowId != autosaveWindowId) {
 					// this label is required only in tool which implement autosave
 					alert('<spring:escapeBody javaScriptEscape="true"><fmt:message key="label.prevent.learner.autosave.mutliple.tabs" /></spring:escapeBody>');
 					return false;
 				}
 				localStorage.setItem('lamsAutosaveTimestamp', currentTime);
+				localStorage.setItem('lamsAutosaveWindowId', autosaveWindowId);
 				return true;
 			}
 			
Index: lams_monitoring/web/WEB-INF/tags/Page5.tag
===================================================================
diff -u -r876e644c066e81c2721ffa085fd12f386e2f3bb6 -r1eb2143815418c6dc14f115acc6cc1ce7c1fed32
--- lams_monitoring/web/WEB-INF/tags/Page5.tag	(.../Page5.tag)	(revision 876e644c066e81c2721ffa085fd12f386e2f3bb6)
+++ lams_monitoring/web/WEB-INF/tags/Page5.tag	(.../Page5.tag)	(revision 1eb2143815418c6dc14f115acc6cc1ce7c1fed32)
@@ -165,16 +165,19 @@
 				$('#sidebar').show();
 			}
 
-			function preventLearnerAutosaveFromMultipleTabs(autosaveInterval) {
+			function preventLearnerAutosaveFromMultipleTabs(autosaveWindowId, autosaveInterval) {
 				let currentTime = new Date().getTime(),
-					lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp');
+						lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp'),
+						lamsAutosaveWindowId = +localStorage.getItem('lamsAutosaveWindowId');
 				// check if autosave does not happen too often
-				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime) {
+				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime
+						&& lamsAutosaveWindowId && lamsAutosaveWindowId != autosaveWindowId) {
 					// this label is required only in tool which implement autosave
 					alert('<spring:escapeBody javaScriptEscape="true"><fmt:message key="label.prevent.learner.autosave.mutliple.tabs" /></spring:escapeBody>');
 					return false;
 				}
 				localStorage.setItem('lamsAutosaveTimestamp', currentTime);
+				localStorage.setItem('lamsAutosaveWindowId', autosaveWindowId);
 				return true;
 			}
 
Index: lams_tool_assessment/web/WEB-INF/tags/Page.tag
===================================================================
diff -u -r876e644c066e81c2721ffa085fd12f386e2f3bb6 -r1eb2143815418c6dc14f115acc6cc1ce7c1fed32
--- lams_tool_assessment/web/WEB-INF/tags/Page.tag	(.../Page.tag)	(revision 876e644c066e81c2721ffa085fd12f386e2f3bb6)
+++ lams_tool_assessment/web/WEB-INF/tags/Page.tag	(.../Page.tag)	(revision 1eb2143815418c6dc14f115acc6cc1ce7c1fed32)
@@ -163,16 +163,19 @@
 				$('#sidebar').show();
 			}
 
-			function preventLearnerAutosaveFromMultipleTabs(autosaveInterval) {
+			function preventLearnerAutosaveFromMultipleTabs(autosaveWindowId, autosaveInterval) {
 				let currentTime = new Date().getTime(),
-					lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp');
+						lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp'),
+						lamsAutosaveWindowId = +localStorage.getItem('lamsAutosaveWindowId');
 				// check if autosave does not happen too often
-				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime) {
+				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime
+						&& lamsAutosaveWindowId && lamsAutosaveWindowId != autosaveWindowId) {
 					// this label is required only in tool which implement autosave
 					alert('<spring:escapeBody javaScriptEscape="true"><fmt:message key="label.prevent.learner.autosave.mutliple.tabs" /></spring:escapeBody>');
 					return false;
 				}
 				localStorage.setItem('lamsAutosaveTimestamp', currentTime);
+				localStorage.setItem('lamsAutosaveWindowId', autosaveWindowId);
 				return true;
 			}
 			
Index: lams_tool_assessment/web/WEB-INF/tags/Page5.tag
===================================================================
diff -u -r876e644c066e81c2721ffa085fd12f386e2f3bb6 -r1eb2143815418c6dc14f115acc6cc1ce7c1fed32
--- lams_tool_assessment/web/WEB-INF/tags/Page5.tag	(.../Page5.tag)	(revision 876e644c066e81c2721ffa085fd12f386e2f3bb6)
+++ lams_tool_assessment/web/WEB-INF/tags/Page5.tag	(.../Page5.tag)	(revision 1eb2143815418c6dc14f115acc6cc1ce7c1fed32)
@@ -165,16 +165,19 @@
 				$('#sidebar').show();
 			}
 
-			function preventLearnerAutosaveFromMultipleTabs(autosaveInterval) {
+			function preventLearnerAutosaveFromMultipleTabs(autosaveWindowId, autosaveInterval) {
 				let currentTime = new Date().getTime(),
-					lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp');
+						lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp'),
+						lamsAutosaveWindowId = +localStorage.getItem('lamsAutosaveWindowId');
 				// check if autosave does not happen too often
-				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime) {
+				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime
+						&& lamsAutosaveWindowId && lamsAutosaveWindowId != autosaveWindowId) {
 					// this label is required only in tool which implement autosave
 					alert('<spring:escapeBody javaScriptEscape="true"><fmt:message key="label.prevent.learner.autosave.mutliple.tabs" /></spring:escapeBody>');
 					return false;
 				}
 				localStorage.setItem('lamsAutosaveTimestamp', currentTime);
+				localStorage.setItem('lamsAutosaveWindowId', autosaveWindowId);
 				return true;
 			}
 
Index: lams_tool_assessment/web/pages/learning/learning.jsp
===================================================================
diff -u -r13b9f60ae467a5926804ac7229154f390a81b793 -r1eb2143815418c6dc14f115acc6cc1ce7c1fed32
--- lams_tool_assessment/web/pages/learning/learning.jsp	(.../learning.jsp)	(revision 13b9f60ae467a5926804ac7229154f390a81b793)
+++ lams_tool_assessment/web/pages/learning/learning.jsp	(.../learning.jsp)	(revision 1eb2143815418c6dc14f115acc6cc1ce7c1fed32)
@@ -284,13 +284,14 @@
 
 			//autosave feature
 			<c:if test="${hasEditRight && (mode != 'teacher')}">
-			var autosaveInterval = ${isLeadershipEnabled and isUserLeader ? 10000 : 30000}; // 30 or 10 seconds interval
+			var autosaveInterval = ${isLeadershipEnabled and isUserLeader ? 10000 : 30000},  // 30 or 10 seconds interval
+				autosaveWindowId = new Date().getTime(); // all we need for this ID is to be unique
 
 			function learnerAutosave(isCommand){
 				// isCommand means that the autosave was triggered by force complete or another command websocket message
 				// in this case do not check multiple tabs open, just autosave
 				if (!isCommand) {
-					let shouldAutosave = preventLearnerAutosaveFromMultipleTabs(autosaveInterval);
+					let shouldAutosave = preventLearnerAutosaveFromMultipleTabs(autosaveWindowId, autosaveInterval);
 					if (!shouldAutosave) {
 						return;
 					}
Index: lams_tool_chat/web/WEB-INF/tags/Page.tag
===================================================================
diff -u -r876e644c066e81c2721ffa085fd12f386e2f3bb6 -r1eb2143815418c6dc14f115acc6cc1ce7c1fed32
--- lams_tool_chat/web/WEB-INF/tags/Page.tag	(.../Page.tag)	(revision 876e644c066e81c2721ffa085fd12f386e2f3bb6)
+++ lams_tool_chat/web/WEB-INF/tags/Page.tag	(.../Page.tag)	(revision 1eb2143815418c6dc14f115acc6cc1ce7c1fed32)
@@ -163,16 +163,19 @@
 				$('#sidebar').show();
 			}
 
-			function preventLearnerAutosaveFromMultipleTabs(autosaveInterval) {
+			function preventLearnerAutosaveFromMultipleTabs(autosaveWindowId, autosaveInterval) {
 				let currentTime = new Date().getTime(),
-					lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp');
+						lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp'),
+						lamsAutosaveWindowId = +localStorage.getItem('lamsAutosaveWindowId');
 				// check if autosave does not happen too often
-				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime) {
+				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime
+						&& lamsAutosaveWindowId && lamsAutosaveWindowId != autosaveWindowId) {
 					// this label is required only in tool which implement autosave
 					alert('<spring:escapeBody javaScriptEscape="true"><fmt:message key="label.prevent.learner.autosave.mutliple.tabs" /></spring:escapeBody>');
 					return false;
 				}
 				localStorage.setItem('lamsAutosaveTimestamp', currentTime);
+				localStorage.setItem('lamsAutosaveWindowId', autosaveWindowId);
 				return true;
 			}
 			
Index: lams_tool_chat/web/WEB-INF/tags/Page5.tag
===================================================================
diff -u -r876e644c066e81c2721ffa085fd12f386e2f3bb6 -r1eb2143815418c6dc14f115acc6cc1ce7c1fed32
--- lams_tool_chat/web/WEB-INF/tags/Page5.tag	(.../Page5.tag)	(revision 876e644c066e81c2721ffa085fd12f386e2f3bb6)
+++ lams_tool_chat/web/WEB-INF/tags/Page5.tag	(.../Page5.tag)	(revision 1eb2143815418c6dc14f115acc6cc1ce7c1fed32)
@@ -165,16 +165,19 @@
 				$('#sidebar').show();
 			}
 
-			function preventLearnerAutosaveFromMultipleTabs(autosaveInterval) {
+			function preventLearnerAutosaveFromMultipleTabs(autosaveWindowId, autosaveInterval) {
 				let currentTime = new Date().getTime(),
-					lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp');
+						lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp'),
+						lamsAutosaveWindowId = +localStorage.getItem('lamsAutosaveWindowId');
 				// check if autosave does not happen too often
-				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime) {
+				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime
+						&& lamsAutosaveWindowId && lamsAutosaveWindowId != autosaveWindowId) {
 					// this label is required only in tool which implement autosave
 					alert('<spring:escapeBody javaScriptEscape="true"><fmt:message key="label.prevent.learner.autosave.mutliple.tabs" /></spring:escapeBody>');
 					return false;
 				}
 				localStorage.setItem('lamsAutosaveTimestamp', currentTime);
+				localStorage.setItem('lamsAutosaveWindowId', autosaveWindowId);
 				return true;
 			}
 
Index: lams_tool_daco/web/WEB-INF/tags/Page.tag
===================================================================
diff -u -r876e644c066e81c2721ffa085fd12f386e2f3bb6 -r1eb2143815418c6dc14f115acc6cc1ce7c1fed32
--- lams_tool_daco/web/WEB-INF/tags/Page.tag	(.../Page.tag)	(revision 876e644c066e81c2721ffa085fd12f386e2f3bb6)
+++ lams_tool_daco/web/WEB-INF/tags/Page.tag	(.../Page.tag)	(revision 1eb2143815418c6dc14f115acc6cc1ce7c1fed32)
@@ -163,16 +163,19 @@
 				$('#sidebar').show();
 			}
 
-			function preventLearnerAutosaveFromMultipleTabs(autosaveInterval) {
+			function preventLearnerAutosaveFromMultipleTabs(autosaveWindowId, autosaveInterval) {
 				let currentTime = new Date().getTime(),
-					lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp');
+						lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp'),
+						lamsAutosaveWindowId = +localStorage.getItem('lamsAutosaveWindowId');
 				// check if autosave does not happen too often
-				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime) {
+				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime
+						&& lamsAutosaveWindowId && lamsAutosaveWindowId != autosaveWindowId) {
 					// this label is required only in tool which implement autosave
 					alert('<spring:escapeBody javaScriptEscape="true"><fmt:message key="label.prevent.learner.autosave.mutliple.tabs" /></spring:escapeBody>');
 					return false;
 				}
 				localStorage.setItem('lamsAutosaveTimestamp', currentTime);
+				localStorage.setItem('lamsAutosaveWindowId', autosaveWindowId);
 				return true;
 			}
 			
Index: lams_tool_daco/web/WEB-INF/tags/Page5.tag
===================================================================
diff -u -r876e644c066e81c2721ffa085fd12f386e2f3bb6 -r1eb2143815418c6dc14f115acc6cc1ce7c1fed32
--- lams_tool_daco/web/WEB-INF/tags/Page5.tag	(.../Page5.tag)	(revision 876e644c066e81c2721ffa085fd12f386e2f3bb6)
+++ lams_tool_daco/web/WEB-INF/tags/Page5.tag	(.../Page5.tag)	(revision 1eb2143815418c6dc14f115acc6cc1ce7c1fed32)
@@ -165,16 +165,19 @@
 				$('#sidebar').show();
 			}
 
-			function preventLearnerAutosaveFromMultipleTabs(autosaveInterval) {
+			function preventLearnerAutosaveFromMultipleTabs(autosaveWindowId, autosaveInterval) {
 				let currentTime = new Date().getTime(),
-					lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp');
+						lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp'),
+						lamsAutosaveWindowId = +localStorage.getItem('lamsAutosaveWindowId');
 				// check if autosave does not happen too often
-				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime) {
+				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime
+						&& lamsAutosaveWindowId && lamsAutosaveWindowId != autosaveWindowId) {
 					// this label is required only in tool which implement autosave
 					alert('<spring:escapeBody javaScriptEscape="true"><fmt:message key="label.prevent.learner.autosave.mutliple.tabs" /></spring:escapeBody>');
 					return false;
 				}
 				localStorage.setItem('lamsAutosaveTimestamp', currentTime);
+				localStorage.setItem('lamsAutosaveWindowId', autosaveWindowId);
 				return true;
 			}
 
Index: lams_tool_doku/web/WEB-INF/tags/Page.tag
===================================================================
diff -u -r876e644c066e81c2721ffa085fd12f386e2f3bb6 -r1eb2143815418c6dc14f115acc6cc1ce7c1fed32
--- lams_tool_doku/web/WEB-INF/tags/Page.tag	(.../Page.tag)	(revision 876e644c066e81c2721ffa085fd12f386e2f3bb6)
+++ lams_tool_doku/web/WEB-INF/tags/Page.tag	(.../Page.tag)	(revision 1eb2143815418c6dc14f115acc6cc1ce7c1fed32)
@@ -163,16 +163,19 @@
 				$('#sidebar').show();
 			}
 
-			function preventLearnerAutosaveFromMultipleTabs(autosaveInterval) {
+			function preventLearnerAutosaveFromMultipleTabs(autosaveWindowId, autosaveInterval) {
 				let currentTime = new Date().getTime(),
-					lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp');
+						lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp'),
+						lamsAutosaveWindowId = +localStorage.getItem('lamsAutosaveWindowId');
 				// check if autosave does not happen too often
-				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime) {
+				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime
+						&& lamsAutosaveWindowId && lamsAutosaveWindowId != autosaveWindowId) {
 					// this label is required only in tool which implement autosave
 					alert('<spring:escapeBody javaScriptEscape="true"><fmt:message key="label.prevent.learner.autosave.mutliple.tabs" /></spring:escapeBody>');
 					return false;
 				}
 				localStorage.setItem('lamsAutosaveTimestamp', currentTime);
+				localStorage.setItem('lamsAutosaveWindowId', autosaveWindowId);
 				return true;
 			}
 			
Index: lams_tool_doku/web/WEB-INF/tags/Page5.tag
===================================================================
diff -u -r876e644c066e81c2721ffa085fd12f386e2f3bb6 -r1eb2143815418c6dc14f115acc6cc1ce7c1fed32
--- lams_tool_doku/web/WEB-INF/tags/Page5.tag	(.../Page5.tag)	(revision 876e644c066e81c2721ffa085fd12f386e2f3bb6)
+++ lams_tool_doku/web/WEB-INF/tags/Page5.tag	(.../Page5.tag)	(revision 1eb2143815418c6dc14f115acc6cc1ce7c1fed32)
@@ -165,16 +165,19 @@
 				$('#sidebar').show();
 			}
 
-			function preventLearnerAutosaveFromMultipleTabs(autosaveInterval) {
+			function preventLearnerAutosaveFromMultipleTabs(autosaveWindowId, autosaveInterval) {
 				let currentTime = new Date().getTime(),
-					lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp');
+						lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp'),
+						lamsAutosaveWindowId = +localStorage.getItem('lamsAutosaveWindowId');
 				// check if autosave does not happen too often
-				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime) {
+				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime
+						&& lamsAutosaveWindowId && lamsAutosaveWindowId != autosaveWindowId) {
 					// this label is required only in tool which implement autosave
 					alert('<spring:escapeBody javaScriptEscape="true"><fmt:message key="label.prevent.learner.autosave.mutliple.tabs" /></spring:escapeBody>');
 					return false;
 				}
 				localStorage.setItem('lamsAutosaveTimestamp', currentTime);
+				localStorage.setItem('lamsAutosaveWindowId', autosaveWindowId);
 				return true;
 			}
 
Index: lams_tool_forum/web/WEB-INF/tags/Page.tag
===================================================================
diff -u -r876e644c066e81c2721ffa085fd12f386e2f3bb6 -r1eb2143815418c6dc14f115acc6cc1ce7c1fed32
--- lams_tool_forum/web/WEB-INF/tags/Page.tag	(.../Page.tag)	(revision 876e644c066e81c2721ffa085fd12f386e2f3bb6)
+++ lams_tool_forum/web/WEB-INF/tags/Page.tag	(.../Page.tag)	(revision 1eb2143815418c6dc14f115acc6cc1ce7c1fed32)
@@ -163,16 +163,19 @@
 				$('#sidebar').show();
 			}
 
-			function preventLearnerAutosaveFromMultipleTabs(autosaveInterval) {
+			function preventLearnerAutosaveFromMultipleTabs(autosaveWindowId, autosaveInterval) {
 				let currentTime = new Date().getTime(),
-					lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp');
+						lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp'),
+						lamsAutosaveWindowId = +localStorage.getItem('lamsAutosaveWindowId');
 				// check if autosave does not happen too often
-				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime) {
+				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime
+						&& lamsAutosaveWindowId && lamsAutosaveWindowId != autosaveWindowId) {
 					// this label is required only in tool which implement autosave
 					alert('<spring:escapeBody javaScriptEscape="true"><fmt:message key="label.prevent.learner.autosave.mutliple.tabs" /></spring:escapeBody>');
 					return false;
 				}
 				localStorage.setItem('lamsAutosaveTimestamp', currentTime);
+				localStorage.setItem('lamsAutosaveWindowId', autosaveWindowId);
 				return true;
 			}
 			
Index: lams_tool_forum/web/WEB-INF/tags/Page5.tag
===================================================================
diff -u -r876e644c066e81c2721ffa085fd12f386e2f3bb6 -r1eb2143815418c6dc14f115acc6cc1ce7c1fed32
--- lams_tool_forum/web/WEB-INF/tags/Page5.tag	(.../Page5.tag)	(revision 876e644c066e81c2721ffa085fd12f386e2f3bb6)
+++ lams_tool_forum/web/WEB-INF/tags/Page5.tag	(.../Page5.tag)	(revision 1eb2143815418c6dc14f115acc6cc1ce7c1fed32)
@@ -165,16 +165,19 @@
 				$('#sidebar').show();
 			}
 
-			function preventLearnerAutosaveFromMultipleTabs(autosaveInterval) {
+			function preventLearnerAutosaveFromMultipleTabs(autosaveWindowId, autosaveInterval) {
 				let currentTime = new Date().getTime(),
-					lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp');
+						lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp'),
+						lamsAutosaveWindowId = +localStorage.getItem('lamsAutosaveWindowId');
 				// check if autosave does not happen too often
-				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime) {
+				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime
+						&& lamsAutosaveWindowId && lamsAutosaveWindowId != autosaveWindowId) {
 					// this label is required only in tool which implement autosave
 					alert('<spring:escapeBody javaScriptEscape="true"><fmt:message key="label.prevent.learner.autosave.mutliple.tabs" /></spring:escapeBody>');
 					return false;
 				}
 				localStorage.setItem('lamsAutosaveTimestamp', currentTime);
+				localStorage.setItem('lamsAutosaveWindowId', autosaveWindowId);
 				return true;
 			}
 
Index: lams_tool_gmap/web/WEB-INF/tags/Page.tag
===================================================================
diff -u -r876e644c066e81c2721ffa085fd12f386e2f3bb6 -r1eb2143815418c6dc14f115acc6cc1ce7c1fed32
--- lams_tool_gmap/web/WEB-INF/tags/Page.tag	(.../Page.tag)	(revision 876e644c066e81c2721ffa085fd12f386e2f3bb6)
+++ lams_tool_gmap/web/WEB-INF/tags/Page.tag	(.../Page.tag)	(revision 1eb2143815418c6dc14f115acc6cc1ce7c1fed32)
@@ -163,16 +163,19 @@
 				$('#sidebar').show();
 			}
 
-			function preventLearnerAutosaveFromMultipleTabs(autosaveInterval) {
+			function preventLearnerAutosaveFromMultipleTabs(autosaveWindowId, autosaveInterval) {
 				let currentTime = new Date().getTime(),
-					lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp');
+						lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp'),
+						lamsAutosaveWindowId = +localStorage.getItem('lamsAutosaveWindowId');
 				// check if autosave does not happen too often
-				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime) {
+				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime
+						&& lamsAutosaveWindowId && lamsAutosaveWindowId != autosaveWindowId) {
 					// this label is required only in tool which implement autosave
 					alert('<spring:escapeBody javaScriptEscape="true"><fmt:message key="label.prevent.learner.autosave.mutliple.tabs" /></spring:escapeBody>');
 					return false;
 				}
 				localStorage.setItem('lamsAutosaveTimestamp', currentTime);
+				localStorage.setItem('lamsAutosaveWindowId', autosaveWindowId);
 				return true;
 			}
 			
Index: lams_tool_gmap/web/WEB-INF/tags/Page5.tag
===================================================================
diff -u -r876e644c066e81c2721ffa085fd12f386e2f3bb6 -r1eb2143815418c6dc14f115acc6cc1ce7c1fed32
--- lams_tool_gmap/web/WEB-INF/tags/Page5.tag	(.../Page5.tag)	(revision 876e644c066e81c2721ffa085fd12f386e2f3bb6)
+++ lams_tool_gmap/web/WEB-INF/tags/Page5.tag	(.../Page5.tag)	(revision 1eb2143815418c6dc14f115acc6cc1ce7c1fed32)
@@ -165,16 +165,19 @@
 				$('#sidebar').show();
 			}
 
-			function preventLearnerAutosaveFromMultipleTabs(autosaveInterval) {
+			function preventLearnerAutosaveFromMultipleTabs(autosaveWindowId, autosaveInterval) {
 				let currentTime = new Date().getTime(),
-					lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp');
+						lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp'),
+						lamsAutosaveWindowId = +localStorage.getItem('lamsAutosaveWindowId');
 				// check if autosave does not happen too often
-				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime) {
+				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime
+						&& lamsAutosaveWindowId && lamsAutosaveWindowId != autosaveWindowId) {
 					// this label is required only in tool which implement autosave
 					alert('<spring:escapeBody javaScriptEscape="true"><fmt:message key="label.prevent.learner.autosave.mutliple.tabs" /></spring:escapeBody>');
 					return false;
 				}
 				localStorage.setItem('lamsAutosaveTimestamp', currentTime);
+				localStorage.setItem('lamsAutosaveWindowId', autosaveWindowId);
 				return true;
 			}
 
Index: lams_tool_images/web/WEB-INF/tags/Page.tag
===================================================================
diff -u -r876e644c066e81c2721ffa085fd12f386e2f3bb6 -r1eb2143815418c6dc14f115acc6cc1ce7c1fed32
--- lams_tool_images/web/WEB-INF/tags/Page.tag	(.../Page.tag)	(revision 876e644c066e81c2721ffa085fd12f386e2f3bb6)
+++ lams_tool_images/web/WEB-INF/tags/Page.tag	(.../Page.tag)	(revision 1eb2143815418c6dc14f115acc6cc1ce7c1fed32)
@@ -163,16 +163,19 @@
 				$('#sidebar').show();
 			}
 
-			function preventLearnerAutosaveFromMultipleTabs(autosaveInterval) {
+			function preventLearnerAutosaveFromMultipleTabs(autosaveWindowId, autosaveInterval) {
 				let currentTime = new Date().getTime(),
-					lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp');
+						lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp'),
+						lamsAutosaveWindowId = +localStorage.getItem('lamsAutosaveWindowId');
 				// check if autosave does not happen too often
-				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime) {
+				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime
+						&& lamsAutosaveWindowId && lamsAutosaveWindowId != autosaveWindowId) {
 					// this label is required only in tool which implement autosave
 					alert('<spring:escapeBody javaScriptEscape="true"><fmt:message key="label.prevent.learner.autosave.mutliple.tabs" /></spring:escapeBody>');
 					return false;
 				}
 				localStorage.setItem('lamsAutosaveTimestamp', currentTime);
+				localStorage.setItem('lamsAutosaveWindowId', autosaveWindowId);
 				return true;
 			}
 			
Index: lams_tool_images/web/WEB-INF/tags/Page5.tag
===================================================================
diff -u -r876e644c066e81c2721ffa085fd12f386e2f3bb6 -r1eb2143815418c6dc14f115acc6cc1ce7c1fed32
--- lams_tool_images/web/WEB-INF/tags/Page5.tag	(.../Page5.tag)	(revision 876e644c066e81c2721ffa085fd12f386e2f3bb6)
+++ lams_tool_images/web/WEB-INF/tags/Page5.tag	(.../Page5.tag)	(revision 1eb2143815418c6dc14f115acc6cc1ce7c1fed32)
@@ -165,16 +165,19 @@
 				$('#sidebar').show();
 			}
 
-			function preventLearnerAutosaveFromMultipleTabs(autosaveInterval) {
+			function preventLearnerAutosaveFromMultipleTabs(autosaveWindowId, autosaveInterval) {
 				let currentTime = new Date().getTime(),
-					lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp');
+						lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp'),
+						lamsAutosaveWindowId = +localStorage.getItem('lamsAutosaveWindowId');
 				// check if autosave does not happen too often
-				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime) {
+				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime
+						&& lamsAutosaveWindowId && lamsAutosaveWindowId != autosaveWindowId) {
 					// this label is required only in tool which implement autosave
 					alert('<spring:escapeBody javaScriptEscape="true"><fmt:message key="label.prevent.learner.autosave.mutliple.tabs" /></spring:escapeBody>');
 					return false;
 				}
 				localStorage.setItem('lamsAutosaveTimestamp', currentTime);
+				localStorage.setItem('lamsAutosaveWindowId', autosaveWindowId);
 				return true;
 			}
 
Index: lams_tool_imscc/web/WEB-INF/tags/Page.tag
===================================================================
diff -u -r876e644c066e81c2721ffa085fd12f386e2f3bb6 -r1eb2143815418c6dc14f115acc6cc1ce7c1fed32
--- lams_tool_imscc/web/WEB-INF/tags/Page.tag	(.../Page.tag)	(revision 876e644c066e81c2721ffa085fd12f386e2f3bb6)
+++ lams_tool_imscc/web/WEB-INF/tags/Page.tag	(.../Page.tag)	(revision 1eb2143815418c6dc14f115acc6cc1ce7c1fed32)
@@ -163,16 +163,19 @@
 				$('#sidebar').show();
 			}
 
-			function preventLearnerAutosaveFromMultipleTabs(autosaveInterval) {
+			function preventLearnerAutosaveFromMultipleTabs(autosaveWindowId, autosaveInterval) {
 				let currentTime = new Date().getTime(),
-					lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp');
+						lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp'),
+						lamsAutosaveWindowId = +localStorage.getItem('lamsAutosaveWindowId');
 				// check if autosave does not happen too often
-				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime) {
+				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime
+						&& lamsAutosaveWindowId && lamsAutosaveWindowId != autosaveWindowId) {
 					// this label is required only in tool which implement autosave
 					alert('<spring:escapeBody javaScriptEscape="true"><fmt:message key="label.prevent.learner.autosave.mutliple.tabs" /></spring:escapeBody>');
 					return false;
 				}
 				localStorage.setItem('lamsAutosaveTimestamp', currentTime);
+				localStorage.setItem('lamsAutosaveWindowId', autosaveWindowId);
 				return true;
 			}
 			
Index: lams_tool_imscc/web/WEB-INF/tags/Page5.tag
===================================================================
diff -u -r876e644c066e81c2721ffa085fd12f386e2f3bb6 -r1eb2143815418c6dc14f115acc6cc1ce7c1fed32
--- lams_tool_imscc/web/WEB-INF/tags/Page5.tag	(.../Page5.tag)	(revision 876e644c066e81c2721ffa085fd12f386e2f3bb6)
+++ lams_tool_imscc/web/WEB-INF/tags/Page5.tag	(.../Page5.tag)	(revision 1eb2143815418c6dc14f115acc6cc1ce7c1fed32)
@@ -165,16 +165,19 @@
 				$('#sidebar').show();
 			}
 
-			function preventLearnerAutosaveFromMultipleTabs(autosaveInterval) {
+			function preventLearnerAutosaveFromMultipleTabs(autosaveWindowId, autosaveInterval) {
 				let currentTime = new Date().getTime(),
-					lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp');
+						lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp'),
+						lamsAutosaveWindowId = +localStorage.getItem('lamsAutosaveWindowId');
 				// check if autosave does not happen too often
-				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime) {
+				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime
+						&& lamsAutosaveWindowId && lamsAutosaveWindowId != autosaveWindowId) {
 					// this label is required only in tool which implement autosave
 					alert('<spring:escapeBody javaScriptEscape="true"><fmt:message key="label.prevent.learner.autosave.mutliple.tabs" /></spring:escapeBody>');
 					return false;
 				}
 				localStorage.setItem('lamsAutosaveTimestamp', currentTime);
+				localStorage.setItem('lamsAutosaveWindowId', autosaveWindowId);
 				return true;
 			}
 
Index: lams_tool_lamc/web/WEB-INF/tags/Page.tag
===================================================================
diff -u -r876e644c066e81c2721ffa085fd12f386e2f3bb6 -r1eb2143815418c6dc14f115acc6cc1ce7c1fed32
--- lams_tool_lamc/web/WEB-INF/tags/Page.tag	(.../Page.tag)	(revision 876e644c066e81c2721ffa085fd12f386e2f3bb6)
+++ lams_tool_lamc/web/WEB-INF/tags/Page.tag	(.../Page.tag)	(revision 1eb2143815418c6dc14f115acc6cc1ce7c1fed32)
@@ -163,16 +163,19 @@
 				$('#sidebar').show();
 			}
 
-			function preventLearnerAutosaveFromMultipleTabs(autosaveInterval) {
+			function preventLearnerAutosaveFromMultipleTabs(autosaveWindowId, autosaveInterval) {
 				let currentTime = new Date().getTime(),
-					lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp');
+						lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp'),
+						lamsAutosaveWindowId = +localStorage.getItem('lamsAutosaveWindowId');
 				// check if autosave does not happen too often
-				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime) {
+				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime
+						&& lamsAutosaveWindowId && lamsAutosaveWindowId != autosaveWindowId) {
 					// this label is required only in tool which implement autosave
 					alert('<spring:escapeBody javaScriptEscape="true"><fmt:message key="label.prevent.learner.autosave.mutliple.tabs" /></spring:escapeBody>');
 					return false;
 				}
 				localStorage.setItem('lamsAutosaveTimestamp', currentTime);
+				localStorage.setItem('lamsAutosaveWindowId', autosaveWindowId);
 				return true;
 			}
 			
Index: lams_tool_lamc/web/WEB-INF/tags/Page5.tag
===================================================================
diff -u -r876e644c066e81c2721ffa085fd12f386e2f3bb6 -r1eb2143815418c6dc14f115acc6cc1ce7c1fed32
--- lams_tool_lamc/web/WEB-INF/tags/Page5.tag	(.../Page5.tag)	(revision 876e644c066e81c2721ffa085fd12f386e2f3bb6)
+++ lams_tool_lamc/web/WEB-INF/tags/Page5.tag	(.../Page5.tag)	(revision 1eb2143815418c6dc14f115acc6cc1ce7c1fed32)
@@ -165,16 +165,19 @@
 				$('#sidebar').show();
 			}
 
-			function preventLearnerAutosaveFromMultipleTabs(autosaveInterval) {
+			function preventLearnerAutosaveFromMultipleTabs(autosaveWindowId, autosaveInterval) {
 				let currentTime = new Date().getTime(),
-					lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp');
+						lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp'),
+						lamsAutosaveWindowId = +localStorage.getItem('lamsAutosaveWindowId');
 				// check if autosave does not happen too often
-				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime) {
+				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime
+						&& lamsAutosaveWindowId && lamsAutosaveWindowId != autosaveWindowId) {
 					// this label is required only in tool which implement autosave
 					alert('<spring:escapeBody javaScriptEscape="true"><fmt:message key="label.prevent.learner.autosave.mutliple.tabs" /></spring:escapeBody>');
 					return false;
 				}
 				localStorage.setItem('lamsAutosaveTimestamp', currentTime);
+				localStorage.setItem('lamsAutosaveWindowId', autosaveWindowId);
 				return true;
 			}
 
Index: lams_tool_lamc/web/learning/AnswersContent.jsp
===================================================================
diff -u -r39898a6bc099395132ff585dae1a8848058b86bb -r1eb2143815418c6dc14f115acc6cc1ce7c1fed32
--- lams_tool_lamc/web/learning/AnswersContent.jsp	(.../AnswersContent.jsp)	(revision 39898a6bc099395132ff585dae1a8848058b86bb)
+++ lams_tool_lamc/web/learning/AnswersContent.jsp	(.../AnswersContent.jsp)	(revision 1eb2143815418c6dc14f115acc6cc1ce7c1fed32)
@@ -36,14 +36,15 @@
 
         //autoSaveAnswers if hasEditRight
         if (${hasEditRight}) {
-          var interval = "30000"; // = 30 seconds
+          var interval = "30000",  // = 30 seconds
+				  autosaveWindowId = new Date().getTime(); // all we need for this ID is to be unique;
           window.setInterval(learnerAutosave, interval);
           
           function learnerAutosave(isCommand){
               // isCommand means that the autosave was triggered by force complete or another command websocket message
 			  // in this case do not check multiple tabs open, just autosave
 			  if (!isCommand) {
-				let shouldAutosave = preventLearnerAutosaveFromMultipleTabs(interval);
+				let shouldAutosave = preventLearnerAutosaveFromMultipleTabs(autosaveWindowId, interval);
 				if (!shouldAutosave) {
 					return;
 				}
@@ -184,5 +185,4 @@
 		</div>
 	</lams:Page>
 </body>
-</lams:html>
-
+</lams:html>
\ No newline at end of file
Index: lams_tool_laqa/web/WEB-INF/tags/Page.tag
===================================================================
diff -u -r876e644c066e81c2721ffa085fd12f386e2f3bb6 -r1eb2143815418c6dc14f115acc6cc1ce7c1fed32
--- lams_tool_laqa/web/WEB-INF/tags/Page.tag	(.../Page.tag)	(revision 876e644c066e81c2721ffa085fd12f386e2f3bb6)
+++ lams_tool_laqa/web/WEB-INF/tags/Page.tag	(.../Page.tag)	(revision 1eb2143815418c6dc14f115acc6cc1ce7c1fed32)
@@ -163,16 +163,19 @@
 				$('#sidebar').show();
 			}
 
-			function preventLearnerAutosaveFromMultipleTabs(autosaveInterval) {
+			function preventLearnerAutosaveFromMultipleTabs(autosaveWindowId, autosaveInterval) {
 				let currentTime = new Date().getTime(),
-					lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp');
+						lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp'),
+						lamsAutosaveWindowId = +localStorage.getItem('lamsAutosaveWindowId');
 				// check if autosave does not happen too often
-				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime) {
+				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime
+						&& lamsAutosaveWindowId && lamsAutosaveWindowId != autosaveWindowId) {
 					// this label is required only in tool which implement autosave
 					alert('<spring:escapeBody javaScriptEscape="true"><fmt:message key="label.prevent.learner.autosave.mutliple.tabs" /></spring:escapeBody>');
 					return false;
 				}
 				localStorage.setItem('lamsAutosaveTimestamp', currentTime);
+				localStorage.setItem('lamsAutosaveWindowId', autosaveWindowId);
 				return true;
 			}
 			
Index: lams_tool_laqa/web/WEB-INF/tags/Page5.tag
===================================================================
diff -u -r876e644c066e81c2721ffa085fd12f386e2f3bb6 -r1eb2143815418c6dc14f115acc6cc1ce7c1fed32
--- lams_tool_laqa/web/WEB-INF/tags/Page5.tag	(.../Page5.tag)	(revision 876e644c066e81c2721ffa085fd12f386e2f3bb6)
+++ lams_tool_laqa/web/WEB-INF/tags/Page5.tag	(.../Page5.tag)	(revision 1eb2143815418c6dc14f115acc6cc1ce7c1fed32)
@@ -165,16 +165,19 @@
 				$('#sidebar').show();
 			}
 
-			function preventLearnerAutosaveFromMultipleTabs(autosaveInterval) {
+			function preventLearnerAutosaveFromMultipleTabs(autosaveWindowId, autosaveInterval) {
 				let currentTime = new Date().getTime(),
-					lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp');
+						lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp'),
+						lamsAutosaveWindowId = +localStorage.getItem('lamsAutosaveWindowId');
 				// check if autosave does not happen too often
-				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime) {
+				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime
+						&& lamsAutosaveWindowId && lamsAutosaveWindowId != autosaveWindowId) {
 					// this label is required only in tool which implement autosave
 					alert('<spring:escapeBody javaScriptEscape="true"><fmt:message key="label.prevent.learner.autosave.mutliple.tabs" /></spring:escapeBody>');
 					return false;
 				}
 				localStorage.setItem('lamsAutosaveTimestamp', currentTime);
+				localStorage.setItem('lamsAutosaveWindowId', autosaveWindowId);
 				return true;
 			}
 
Index: lams_tool_laqa/web/learning/AnswersContent.jsp
===================================================================
diff -u -rfe19797ec82718905555353176ed719bec11043e -r1eb2143815418c6dc14f115acc6cc1ce7c1fed32
--- lams_tool_laqa/web/learning/AnswersContent.jsp	(.../AnswersContent.jsp)	(revision fe19797ec82718905555353176ed719bec11043e)
+++ lams_tool_laqa/web/learning/AnswersContent.jsp	(.../AnswersContent.jsp)	(revision 1eb2143815418c6dc14f115acc6cc1ce7c1fed32)
@@ -118,14 +118,15 @@
 		//autoSaveAnswers if hasEditRight
 		if (${hasEditRight}) {
 				
-			var interval = "30000"; // = 30 seconds
+			var interval = "30000", // = 30 seconds
+				autosaveWindowId = new Date().getTime(); // all we need for this ID is to be unique;
 			window.setInterval(learnerAutosave, interval);
 			
 			function learnerAutosave(isCommand){
                 // isCommand means that the autosave was triggered by force complete or another command websocket message
 			    // in this case do not check multiple tabs open, just autosave
 			    if (!isCommand) {
-				  let shouldAutosave = preventLearnerAutosaveFromMultipleTabs(interval);
+				  let shouldAutosave = preventLearnerAutosaveFromMultipleTabs(autosaveWindowId, interval);
 				  if (!shouldAutosave) {
 					return;
 				  }
Index: lams_tool_larsrc/web/WEB-INF/tags/Page.tag
===================================================================
diff -u -r876e644c066e81c2721ffa085fd12f386e2f3bb6 -r1eb2143815418c6dc14f115acc6cc1ce7c1fed32
--- lams_tool_larsrc/web/WEB-INF/tags/Page.tag	(.../Page.tag)	(revision 876e644c066e81c2721ffa085fd12f386e2f3bb6)
+++ lams_tool_larsrc/web/WEB-INF/tags/Page.tag	(.../Page.tag)	(revision 1eb2143815418c6dc14f115acc6cc1ce7c1fed32)
@@ -163,16 +163,19 @@
 				$('#sidebar').show();
 			}
 
-			function preventLearnerAutosaveFromMultipleTabs(autosaveInterval) {
+			function preventLearnerAutosaveFromMultipleTabs(autosaveWindowId, autosaveInterval) {
 				let currentTime = new Date().getTime(),
-					lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp');
+						lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp'),
+						lamsAutosaveWindowId = +localStorage.getItem('lamsAutosaveWindowId');
 				// check if autosave does not happen too often
-				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime) {
+				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime
+						&& lamsAutosaveWindowId && lamsAutosaveWindowId != autosaveWindowId) {
 					// this label is required only in tool which implement autosave
 					alert('<spring:escapeBody javaScriptEscape="true"><fmt:message key="label.prevent.learner.autosave.mutliple.tabs" /></spring:escapeBody>');
 					return false;
 				}
 				localStorage.setItem('lamsAutosaveTimestamp', currentTime);
+				localStorage.setItem('lamsAutosaveWindowId', autosaveWindowId);
 				return true;
 			}
 			
Index: lams_tool_larsrc/web/WEB-INF/tags/Page5.tag
===================================================================
diff -u -r876e644c066e81c2721ffa085fd12f386e2f3bb6 -r1eb2143815418c6dc14f115acc6cc1ce7c1fed32
--- lams_tool_larsrc/web/WEB-INF/tags/Page5.tag	(.../Page5.tag)	(revision 876e644c066e81c2721ffa085fd12f386e2f3bb6)
+++ lams_tool_larsrc/web/WEB-INF/tags/Page5.tag	(.../Page5.tag)	(revision 1eb2143815418c6dc14f115acc6cc1ce7c1fed32)
@@ -165,16 +165,19 @@
 				$('#sidebar').show();
 			}
 
-			function preventLearnerAutosaveFromMultipleTabs(autosaveInterval) {
+			function preventLearnerAutosaveFromMultipleTabs(autosaveWindowId, autosaveInterval) {
 				let currentTime = new Date().getTime(),
-					lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp');
+						lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp'),
+						lamsAutosaveWindowId = +localStorage.getItem('lamsAutosaveWindowId');
 				// check if autosave does not happen too often
-				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime) {
+				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime
+						&& lamsAutosaveWindowId && lamsAutosaveWindowId != autosaveWindowId) {
 					// this label is required only in tool which implement autosave
 					alert('<spring:escapeBody javaScriptEscape="true"><fmt:message key="label.prevent.learner.autosave.mutliple.tabs" /></spring:escapeBody>');
 					return false;
 				}
 				localStorage.setItem('lamsAutosaveTimestamp', currentTime);
+				localStorage.setItem('lamsAutosaveWindowId', autosaveWindowId);
 				return true;
 			}
 
Index: lams_tool_leader/web/WEB-INF/tags/Page.tag
===================================================================
diff -u -r876e644c066e81c2721ffa085fd12f386e2f3bb6 -r1eb2143815418c6dc14f115acc6cc1ce7c1fed32
--- lams_tool_leader/web/WEB-INF/tags/Page.tag	(.../Page.tag)	(revision 876e644c066e81c2721ffa085fd12f386e2f3bb6)
+++ lams_tool_leader/web/WEB-INF/tags/Page.tag	(.../Page.tag)	(revision 1eb2143815418c6dc14f115acc6cc1ce7c1fed32)
@@ -163,16 +163,19 @@
 				$('#sidebar').show();
 			}
 
-			function preventLearnerAutosaveFromMultipleTabs(autosaveInterval) {
+			function preventLearnerAutosaveFromMultipleTabs(autosaveWindowId, autosaveInterval) {
 				let currentTime = new Date().getTime(),
-					lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp');
+						lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp'),
+						lamsAutosaveWindowId = +localStorage.getItem('lamsAutosaveWindowId');
 				// check if autosave does not happen too often
-				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime) {
+				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime
+						&& lamsAutosaveWindowId && lamsAutosaveWindowId != autosaveWindowId) {
 					// this label is required only in tool which implement autosave
 					alert('<spring:escapeBody javaScriptEscape="true"><fmt:message key="label.prevent.learner.autosave.mutliple.tabs" /></spring:escapeBody>');
 					return false;
 				}
 				localStorage.setItem('lamsAutosaveTimestamp', currentTime);
+				localStorage.setItem('lamsAutosaveWindowId', autosaveWindowId);
 				return true;
 			}
 			
Index: lams_tool_leader/web/WEB-INF/tags/Page5.tag
===================================================================
diff -u -r876e644c066e81c2721ffa085fd12f386e2f3bb6 -r1eb2143815418c6dc14f115acc6cc1ce7c1fed32
--- lams_tool_leader/web/WEB-INF/tags/Page5.tag	(.../Page5.tag)	(revision 876e644c066e81c2721ffa085fd12f386e2f3bb6)
+++ lams_tool_leader/web/WEB-INF/tags/Page5.tag	(.../Page5.tag)	(revision 1eb2143815418c6dc14f115acc6cc1ce7c1fed32)
@@ -165,16 +165,19 @@
 				$('#sidebar').show();
 			}
 
-			function preventLearnerAutosaveFromMultipleTabs(autosaveInterval) {
+			function preventLearnerAutosaveFromMultipleTabs(autosaveWindowId, autosaveInterval) {
 				let currentTime = new Date().getTime(),
-					lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp');
+						lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp'),
+						lamsAutosaveWindowId = +localStorage.getItem('lamsAutosaveWindowId');
 				// check if autosave does not happen too often
-				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime) {
+				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime
+						&& lamsAutosaveWindowId && lamsAutosaveWindowId != autosaveWindowId) {
 					// this label is required only in tool which implement autosave
 					alert('<spring:escapeBody javaScriptEscape="true"><fmt:message key="label.prevent.learner.autosave.mutliple.tabs" /></spring:escapeBody>');
 					return false;
 				}
 				localStorage.setItem('lamsAutosaveTimestamp', currentTime);
+				localStorage.setItem('lamsAutosaveWindowId', autosaveWindowId);
 				return true;
 			}
 
Index: lams_tool_mindmap/web/WEB-INF/tags/Page.tag
===================================================================
diff -u -r876e644c066e81c2721ffa085fd12f386e2f3bb6 -r1eb2143815418c6dc14f115acc6cc1ce7c1fed32
--- lams_tool_mindmap/web/WEB-INF/tags/Page.tag	(.../Page.tag)	(revision 876e644c066e81c2721ffa085fd12f386e2f3bb6)
+++ lams_tool_mindmap/web/WEB-INF/tags/Page.tag	(.../Page.tag)	(revision 1eb2143815418c6dc14f115acc6cc1ce7c1fed32)
@@ -163,16 +163,19 @@
 				$('#sidebar').show();
 			}
 
-			function preventLearnerAutosaveFromMultipleTabs(autosaveInterval) {
+			function preventLearnerAutosaveFromMultipleTabs(autosaveWindowId, autosaveInterval) {
 				let currentTime = new Date().getTime(),
-					lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp');
+						lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp'),
+						lamsAutosaveWindowId = +localStorage.getItem('lamsAutosaveWindowId');
 				// check if autosave does not happen too often
-				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime) {
+				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime
+						&& lamsAutosaveWindowId && lamsAutosaveWindowId != autosaveWindowId) {
 					// this label is required only in tool which implement autosave
 					alert('<spring:escapeBody javaScriptEscape="true"><fmt:message key="label.prevent.learner.autosave.mutliple.tabs" /></spring:escapeBody>');
 					return false;
 				}
 				localStorage.setItem('lamsAutosaveTimestamp', currentTime);
+				localStorage.setItem('lamsAutosaveWindowId', autosaveWindowId);
 				return true;
 			}
 			
Index: lams_tool_mindmap/web/WEB-INF/tags/Page5.tag
===================================================================
diff -u -r876e644c066e81c2721ffa085fd12f386e2f3bb6 -r1eb2143815418c6dc14f115acc6cc1ce7c1fed32
--- lams_tool_mindmap/web/WEB-INF/tags/Page5.tag	(.../Page5.tag)	(revision 876e644c066e81c2721ffa085fd12f386e2f3bb6)
+++ lams_tool_mindmap/web/WEB-INF/tags/Page5.tag	(.../Page5.tag)	(revision 1eb2143815418c6dc14f115acc6cc1ce7c1fed32)
@@ -165,16 +165,19 @@
 				$('#sidebar').show();
 			}
 
-			function preventLearnerAutosaveFromMultipleTabs(autosaveInterval) {
+			function preventLearnerAutosaveFromMultipleTabs(autosaveWindowId, autosaveInterval) {
 				let currentTime = new Date().getTime(),
-					lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp');
+						lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp'),
+						lamsAutosaveWindowId = +localStorage.getItem('lamsAutosaveWindowId');
 				// check if autosave does not happen too often
-				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime) {
+				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime
+						&& lamsAutosaveWindowId && lamsAutosaveWindowId != autosaveWindowId) {
 					// this label is required only in tool which implement autosave
 					alert('<spring:escapeBody javaScriptEscape="true"><fmt:message key="label.prevent.learner.autosave.mutliple.tabs" /></spring:escapeBody>');
 					return false;
 				}
 				localStorage.setItem('lamsAutosaveTimestamp', currentTime);
+				localStorage.setItem('lamsAutosaveWindowId', autosaveWindowId);
 				return true;
 			}
 
Index: lams_tool_nb/web/WEB-INF/tags/Page.tag
===================================================================
diff -u -r876e644c066e81c2721ffa085fd12f386e2f3bb6 -r1eb2143815418c6dc14f115acc6cc1ce7c1fed32
--- lams_tool_nb/web/WEB-INF/tags/Page.tag	(.../Page.tag)	(revision 876e644c066e81c2721ffa085fd12f386e2f3bb6)
+++ lams_tool_nb/web/WEB-INF/tags/Page.tag	(.../Page.tag)	(revision 1eb2143815418c6dc14f115acc6cc1ce7c1fed32)
@@ -163,16 +163,19 @@
 				$('#sidebar').show();
 			}
 
-			function preventLearnerAutosaveFromMultipleTabs(autosaveInterval) {
+			function preventLearnerAutosaveFromMultipleTabs(autosaveWindowId, autosaveInterval) {
 				let currentTime = new Date().getTime(),
-					lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp');
+						lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp'),
+						lamsAutosaveWindowId = +localStorage.getItem('lamsAutosaveWindowId');
 				// check if autosave does not happen too often
-				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime) {
+				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime
+						&& lamsAutosaveWindowId && lamsAutosaveWindowId != autosaveWindowId) {
 					// this label is required only in tool which implement autosave
 					alert('<spring:escapeBody javaScriptEscape="true"><fmt:message key="label.prevent.learner.autosave.mutliple.tabs" /></spring:escapeBody>');
 					return false;
 				}
 				localStorage.setItem('lamsAutosaveTimestamp', currentTime);
+				localStorage.setItem('lamsAutosaveWindowId', autosaveWindowId);
 				return true;
 			}
 			
Index: lams_tool_nb/web/WEB-INF/tags/Page5.tag
===================================================================
diff -u -r876e644c066e81c2721ffa085fd12f386e2f3bb6 -r1eb2143815418c6dc14f115acc6cc1ce7c1fed32
--- lams_tool_nb/web/WEB-INF/tags/Page5.tag	(.../Page5.tag)	(revision 876e644c066e81c2721ffa085fd12f386e2f3bb6)
+++ lams_tool_nb/web/WEB-INF/tags/Page5.tag	(.../Page5.tag)	(revision 1eb2143815418c6dc14f115acc6cc1ce7c1fed32)
@@ -165,16 +165,19 @@
 				$('#sidebar').show();
 			}
 
-			function preventLearnerAutosaveFromMultipleTabs(autosaveInterval) {
+			function preventLearnerAutosaveFromMultipleTabs(autosaveWindowId, autosaveInterval) {
 				let currentTime = new Date().getTime(),
-					lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp');
+						lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp'),
+						lamsAutosaveWindowId = +localStorage.getItem('lamsAutosaveWindowId');
 				// check if autosave does not happen too often
-				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime) {
+				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime
+						&& lamsAutosaveWindowId && lamsAutosaveWindowId != autosaveWindowId) {
 					// this label is required only in tool which implement autosave
 					alert('<spring:escapeBody javaScriptEscape="true"><fmt:message key="label.prevent.learner.autosave.mutliple.tabs" /></spring:escapeBody>');
 					return false;
 				}
 				localStorage.setItem('lamsAutosaveTimestamp', currentTime);
+				localStorage.setItem('lamsAutosaveWindowId', autosaveWindowId);
 				return true;
 			}
 
Index: lams_tool_notebook/web/WEB-INF/tags/Page.tag
===================================================================
diff -u -r876e644c066e81c2721ffa085fd12f386e2f3bb6 -r1eb2143815418c6dc14f115acc6cc1ce7c1fed32
--- lams_tool_notebook/web/WEB-INF/tags/Page.tag	(.../Page.tag)	(revision 876e644c066e81c2721ffa085fd12f386e2f3bb6)
+++ lams_tool_notebook/web/WEB-INF/tags/Page.tag	(.../Page.tag)	(revision 1eb2143815418c6dc14f115acc6cc1ce7c1fed32)
@@ -163,16 +163,19 @@
 				$('#sidebar').show();
 			}
 
-			function preventLearnerAutosaveFromMultipleTabs(autosaveInterval) {
+			function preventLearnerAutosaveFromMultipleTabs(autosaveWindowId, autosaveInterval) {
 				let currentTime = new Date().getTime(),
-					lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp');
+						lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp'),
+						lamsAutosaveWindowId = +localStorage.getItem('lamsAutosaveWindowId');
 				// check if autosave does not happen too often
-				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime) {
+				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime
+						&& lamsAutosaveWindowId && lamsAutosaveWindowId != autosaveWindowId) {
 					// this label is required only in tool which implement autosave
 					alert('<spring:escapeBody javaScriptEscape="true"><fmt:message key="label.prevent.learner.autosave.mutliple.tabs" /></spring:escapeBody>');
 					return false;
 				}
 				localStorage.setItem('lamsAutosaveTimestamp', currentTime);
+				localStorage.setItem('lamsAutosaveWindowId', autosaveWindowId);
 				return true;
 			}
 			
Index: lams_tool_notebook/web/WEB-INF/tags/Page5.tag
===================================================================
diff -u -r876e644c066e81c2721ffa085fd12f386e2f3bb6 -r1eb2143815418c6dc14f115acc6cc1ce7c1fed32
--- lams_tool_notebook/web/WEB-INF/tags/Page5.tag	(.../Page5.tag)	(revision 876e644c066e81c2721ffa085fd12f386e2f3bb6)
+++ lams_tool_notebook/web/WEB-INF/tags/Page5.tag	(.../Page5.tag)	(revision 1eb2143815418c6dc14f115acc6cc1ce7c1fed32)
@@ -165,16 +165,19 @@
 				$('#sidebar').show();
 			}
 
-			function preventLearnerAutosaveFromMultipleTabs(autosaveInterval) {
+			function preventLearnerAutosaveFromMultipleTabs(autosaveWindowId, autosaveInterval) {
 				let currentTime = new Date().getTime(),
-					lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp');
+						lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp'),
+						lamsAutosaveWindowId = +localStorage.getItem('lamsAutosaveWindowId');
 				// check if autosave does not happen too often
-				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime) {
+				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime
+						&& lamsAutosaveWindowId && lamsAutosaveWindowId != autosaveWindowId) {
 					// this label is required only in tool which implement autosave
 					alert('<spring:escapeBody javaScriptEscape="true"><fmt:message key="label.prevent.learner.autosave.mutliple.tabs" /></spring:escapeBody>');
 					return false;
 				}
 				localStorage.setItem('lamsAutosaveTimestamp', currentTime);
+				localStorage.setItem('lamsAutosaveWindowId', autosaveWindowId);
 				return true;
 			}
 
Index: lams_tool_pixlr/web/WEB-INF/tags/Page.tag
===================================================================
diff -u -r876e644c066e81c2721ffa085fd12f386e2f3bb6 -r1eb2143815418c6dc14f115acc6cc1ce7c1fed32
--- lams_tool_pixlr/web/WEB-INF/tags/Page.tag	(.../Page.tag)	(revision 876e644c066e81c2721ffa085fd12f386e2f3bb6)
+++ lams_tool_pixlr/web/WEB-INF/tags/Page.tag	(.../Page.tag)	(revision 1eb2143815418c6dc14f115acc6cc1ce7c1fed32)
@@ -163,16 +163,19 @@
 				$('#sidebar').show();
 			}
 
-			function preventLearnerAutosaveFromMultipleTabs(autosaveInterval) {
+			function preventLearnerAutosaveFromMultipleTabs(autosaveWindowId, autosaveInterval) {
 				let currentTime = new Date().getTime(),
-					lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp');
+						lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp'),
+						lamsAutosaveWindowId = +localStorage.getItem('lamsAutosaveWindowId');
 				// check if autosave does not happen too often
-				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime) {
+				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime
+						&& lamsAutosaveWindowId && lamsAutosaveWindowId != autosaveWindowId) {
 					// this label is required only in tool which implement autosave
 					alert('<spring:escapeBody javaScriptEscape="true"><fmt:message key="label.prevent.learner.autosave.mutliple.tabs" /></spring:escapeBody>');
 					return false;
 				}
 				localStorage.setItem('lamsAutosaveTimestamp', currentTime);
+				localStorage.setItem('lamsAutosaveWindowId', autosaveWindowId);
 				return true;
 			}
 			
Index: lams_tool_pixlr/web/WEB-INF/tags/Page5.tag
===================================================================
diff -u -r876e644c066e81c2721ffa085fd12f386e2f3bb6 -r1eb2143815418c6dc14f115acc6cc1ce7c1fed32
--- lams_tool_pixlr/web/WEB-INF/tags/Page5.tag	(.../Page5.tag)	(revision 876e644c066e81c2721ffa085fd12f386e2f3bb6)
+++ lams_tool_pixlr/web/WEB-INF/tags/Page5.tag	(.../Page5.tag)	(revision 1eb2143815418c6dc14f115acc6cc1ce7c1fed32)
@@ -165,16 +165,19 @@
 				$('#sidebar').show();
 			}
 
-			function preventLearnerAutosaveFromMultipleTabs(autosaveInterval) {
+			function preventLearnerAutosaveFromMultipleTabs(autosaveWindowId, autosaveInterval) {
 				let currentTime = new Date().getTime(),
-					lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp');
+						lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp'),
+						lamsAutosaveWindowId = +localStorage.getItem('lamsAutosaveWindowId');
 				// check if autosave does not happen too often
-				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime) {
+				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime
+						&& lamsAutosaveWindowId && lamsAutosaveWindowId != autosaveWindowId) {
 					// this label is required only in tool which implement autosave
 					alert('<spring:escapeBody javaScriptEscape="true"><fmt:message key="label.prevent.learner.autosave.mutliple.tabs" /></spring:escapeBody>');
 					return false;
 				}
 				localStorage.setItem('lamsAutosaveTimestamp', currentTime);
+				localStorage.setItem('lamsAutosaveWindowId', autosaveWindowId);
 				return true;
 			}
 
Index: lams_tool_preview/web/WEB-INF/tags/Page.tag
===================================================================
diff -u -r876e644c066e81c2721ffa085fd12f386e2f3bb6 -r1eb2143815418c6dc14f115acc6cc1ce7c1fed32
--- lams_tool_preview/web/WEB-INF/tags/Page.tag	(.../Page.tag)	(revision 876e644c066e81c2721ffa085fd12f386e2f3bb6)
+++ lams_tool_preview/web/WEB-INF/tags/Page.tag	(.../Page.tag)	(revision 1eb2143815418c6dc14f115acc6cc1ce7c1fed32)
@@ -163,16 +163,19 @@
 				$('#sidebar').show();
 			}
 
-			function preventLearnerAutosaveFromMultipleTabs(autosaveInterval) {
+			function preventLearnerAutosaveFromMultipleTabs(autosaveWindowId, autosaveInterval) {
 				let currentTime = new Date().getTime(),
-					lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp');
+						lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp'),
+						lamsAutosaveWindowId = +localStorage.getItem('lamsAutosaveWindowId');
 				// check if autosave does not happen too often
-				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime) {
+				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime
+						&& lamsAutosaveWindowId && lamsAutosaveWindowId != autosaveWindowId) {
 					// this label is required only in tool which implement autosave
 					alert('<spring:escapeBody javaScriptEscape="true"><fmt:message key="label.prevent.learner.autosave.mutliple.tabs" /></spring:escapeBody>');
 					return false;
 				}
 				localStorage.setItem('lamsAutosaveTimestamp', currentTime);
+				localStorage.setItem('lamsAutosaveWindowId', autosaveWindowId);
 				return true;
 			}
 			
Index: lams_tool_preview/web/WEB-INF/tags/Page5.tag
===================================================================
diff -u -r876e644c066e81c2721ffa085fd12f386e2f3bb6 -r1eb2143815418c6dc14f115acc6cc1ce7c1fed32
--- lams_tool_preview/web/WEB-INF/tags/Page5.tag	(.../Page5.tag)	(revision 876e644c066e81c2721ffa085fd12f386e2f3bb6)
+++ lams_tool_preview/web/WEB-INF/tags/Page5.tag	(.../Page5.tag)	(revision 1eb2143815418c6dc14f115acc6cc1ce7c1fed32)
@@ -165,16 +165,19 @@
 				$('#sidebar').show();
 			}
 
-			function preventLearnerAutosaveFromMultipleTabs(autosaveInterval) {
+			function preventLearnerAutosaveFromMultipleTabs(autosaveWindowId, autosaveInterval) {
 				let currentTime = new Date().getTime(),
-					lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp');
+						lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp'),
+						lamsAutosaveWindowId = +localStorage.getItem('lamsAutosaveWindowId');
 				// check if autosave does not happen too often
-				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime) {
+				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime
+						&& lamsAutosaveWindowId && lamsAutosaveWindowId != autosaveWindowId) {
 					// this label is required only in tool which implement autosave
 					alert('<spring:escapeBody javaScriptEscape="true"><fmt:message key="label.prevent.learner.autosave.mutliple.tabs" /></spring:escapeBody>');
 					return false;
 				}
 				localStorage.setItem('lamsAutosaveTimestamp', currentTime);
+				localStorage.setItem('lamsAutosaveWindowId', autosaveWindowId);
 				return true;
 			}
 
Index: lams_tool_sbmt/web/WEB-INF/tags/Page.tag
===================================================================
diff -u -r876e644c066e81c2721ffa085fd12f386e2f3bb6 -r1eb2143815418c6dc14f115acc6cc1ce7c1fed32
--- lams_tool_sbmt/web/WEB-INF/tags/Page.tag	(.../Page.tag)	(revision 876e644c066e81c2721ffa085fd12f386e2f3bb6)
+++ lams_tool_sbmt/web/WEB-INF/tags/Page.tag	(.../Page.tag)	(revision 1eb2143815418c6dc14f115acc6cc1ce7c1fed32)
@@ -163,16 +163,19 @@
 				$('#sidebar').show();
 			}
 
-			function preventLearnerAutosaveFromMultipleTabs(autosaveInterval) {
+			function preventLearnerAutosaveFromMultipleTabs(autosaveWindowId, autosaveInterval) {
 				let currentTime = new Date().getTime(),
-					lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp');
+						lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp'),
+						lamsAutosaveWindowId = +localStorage.getItem('lamsAutosaveWindowId');
 				// check if autosave does not happen too often
-				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime) {
+				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime
+						&& lamsAutosaveWindowId && lamsAutosaveWindowId != autosaveWindowId) {
 					// this label is required only in tool which implement autosave
 					alert('<spring:escapeBody javaScriptEscape="true"><fmt:message key="label.prevent.learner.autosave.mutliple.tabs" /></spring:escapeBody>');
 					return false;
 				}
 				localStorage.setItem('lamsAutosaveTimestamp', currentTime);
+				localStorage.setItem('lamsAutosaveWindowId', autosaveWindowId);
 				return true;
 			}
 			
Index: lams_tool_sbmt/web/WEB-INF/tags/Page5.tag
===================================================================
diff -u -r876e644c066e81c2721ffa085fd12f386e2f3bb6 -r1eb2143815418c6dc14f115acc6cc1ce7c1fed32
--- lams_tool_sbmt/web/WEB-INF/tags/Page5.tag	(.../Page5.tag)	(revision 876e644c066e81c2721ffa085fd12f386e2f3bb6)
+++ lams_tool_sbmt/web/WEB-INF/tags/Page5.tag	(.../Page5.tag)	(revision 1eb2143815418c6dc14f115acc6cc1ce7c1fed32)
@@ -165,16 +165,19 @@
 				$('#sidebar').show();
 			}
 
-			function preventLearnerAutosaveFromMultipleTabs(autosaveInterval) {
+			function preventLearnerAutosaveFromMultipleTabs(autosaveWindowId, autosaveInterval) {
 				let currentTime = new Date().getTime(),
-					lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp');
+						lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp'),
+						lamsAutosaveWindowId = +localStorage.getItem('lamsAutosaveWindowId');
 				// check if autosave does not happen too often
-				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime) {
+				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime
+						&& lamsAutosaveWindowId && lamsAutosaveWindowId != autosaveWindowId) {
 					// this label is required only in tool which implement autosave
 					alert('<spring:escapeBody javaScriptEscape="true"><fmt:message key="label.prevent.learner.autosave.mutliple.tabs" /></spring:escapeBody>');
 					return false;
 				}
 				localStorage.setItem('lamsAutosaveTimestamp', currentTime);
+				localStorage.setItem('lamsAutosaveWindowId', autosaveWindowId);
 				return true;
 			}
 
Index: lams_tool_scratchie/web/WEB-INF/tags/Page.tag
===================================================================
diff -u -r876e644c066e81c2721ffa085fd12f386e2f3bb6 -r1eb2143815418c6dc14f115acc6cc1ce7c1fed32
--- lams_tool_scratchie/web/WEB-INF/tags/Page.tag	(.../Page.tag)	(revision 876e644c066e81c2721ffa085fd12f386e2f3bb6)
+++ lams_tool_scratchie/web/WEB-INF/tags/Page.tag	(.../Page.tag)	(revision 1eb2143815418c6dc14f115acc6cc1ce7c1fed32)
@@ -163,16 +163,19 @@
 				$('#sidebar').show();
 			}
 
-			function preventLearnerAutosaveFromMultipleTabs(autosaveInterval) {
+			function preventLearnerAutosaveFromMultipleTabs(autosaveWindowId, autosaveInterval) {
 				let currentTime = new Date().getTime(),
-					lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp');
+						lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp'),
+						lamsAutosaveWindowId = +localStorage.getItem('lamsAutosaveWindowId');
 				// check if autosave does not happen too often
-				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime) {
+				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime
+						&& lamsAutosaveWindowId && lamsAutosaveWindowId != autosaveWindowId) {
 					// this label is required only in tool which implement autosave
 					alert('<spring:escapeBody javaScriptEscape="true"><fmt:message key="label.prevent.learner.autosave.mutliple.tabs" /></spring:escapeBody>');
 					return false;
 				}
 				localStorage.setItem('lamsAutosaveTimestamp', currentTime);
+				localStorage.setItem('lamsAutosaveWindowId', autosaveWindowId);
 				return true;
 			}
 			
Index: lams_tool_scratchie/web/WEB-INF/tags/Page5.tag
===================================================================
diff -u -r876e644c066e81c2721ffa085fd12f386e2f3bb6 -r1eb2143815418c6dc14f115acc6cc1ce7c1fed32
--- lams_tool_scratchie/web/WEB-INF/tags/Page5.tag	(.../Page5.tag)	(revision 876e644c066e81c2721ffa085fd12f386e2f3bb6)
+++ lams_tool_scratchie/web/WEB-INF/tags/Page5.tag	(.../Page5.tag)	(revision 1eb2143815418c6dc14f115acc6cc1ce7c1fed32)
@@ -165,16 +165,19 @@
 				$('#sidebar').show();
 			}
 
-			function preventLearnerAutosaveFromMultipleTabs(autosaveInterval) {
+			function preventLearnerAutosaveFromMultipleTabs(autosaveWindowId, autosaveInterval) {
 				let currentTime = new Date().getTime(),
-					lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp');
+						lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp'),
+						lamsAutosaveWindowId = +localStorage.getItem('lamsAutosaveWindowId');
 				// check if autosave does not happen too often
-				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime) {
+				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime
+						&& lamsAutosaveWindowId && lamsAutosaveWindowId != autosaveWindowId) {
 					// this label is required only in tool which implement autosave
 					alert('<spring:escapeBody javaScriptEscape="true"><fmt:message key="label.prevent.learner.autosave.mutliple.tabs" /></spring:escapeBody>');
 					return false;
 				}
 				localStorage.setItem('lamsAutosaveTimestamp', currentTime);
+				localStorage.setItem('lamsAutosaveWindowId', autosaveWindowId);
 				return true;
 			}
 
Index: lams_tool_scratchie/web/pages/learning/learning.jsp
===================================================================
diff -u -r4a366cab6c7fbf3a8211f8bb99295eed75e08453 -r1eb2143815418c6dc14f115acc6cc1ce7c1fed32
--- lams_tool_scratchie/web/pages/learning/learning.jsp	(.../learning.jsp)	(revision 4a366cab6c7fbf3a8211f8bb99295eed75e08453)
+++ lams_tool_scratchie/web/pages/learning/learning.jsp	(.../learning.jsp)	(revision 1eb2143815418c6dc14f115acc6cc1ce7c1fed32)
@@ -435,14 +435,15 @@
 
 			//autosave feature
 			<c:if test="${isUserLeader && (mode != 'teacher')}">
-			var autosaveInterval = "60000"; // 60 seconds interval
+			var autosaveInterval = "60000", // 60 seconds interval
+					autosaveWindowId = new Date().getTime(); // all we need for this ID is to be unique
 			window.setInterval(learnerAutosave,	autosaveInterval);
 
 			function learnerAutosave(isCommand){
 				// isCommand means that the autosave was triggered by force complete or another command websocket message
 				// in this case do not check multiple tabs open, just autosave
 				if (!isCommand) {
-					let shouldAutosave = preventLearnerAutosaveFromMultipleTabs(autosaveInterval);
+					let shouldAutosave = preventLearnerAutosaveFromMultipleTabs(autosaveWindowId, autosaveInterval);
 					if (!shouldAutosave) {
 						return;
 					}
Index: lams_tool_scribe/web/WEB-INF/tags/Page.tag
===================================================================
diff -u -r876e644c066e81c2721ffa085fd12f386e2f3bb6 -r1eb2143815418c6dc14f115acc6cc1ce7c1fed32
--- lams_tool_scribe/web/WEB-INF/tags/Page.tag	(.../Page.tag)	(revision 876e644c066e81c2721ffa085fd12f386e2f3bb6)
+++ lams_tool_scribe/web/WEB-INF/tags/Page.tag	(.../Page.tag)	(revision 1eb2143815418c6dc14f115acc6cc1ce7c1fed32)
@@ -163,16 +163,19 @@
 				$('#sidebar').show();
 			}
 
-			function preventLearnerAutosaveFromMultipleTabs(autosaveInterval) {
+			function preventLearnerAutosaveFromMultipleTabs(autosaveWindowId, autosaveInterval) {
 				let currentTime = new Date().getTime(),
-					lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp');
+						lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp'),
+						lamsAutosaveWindowId = +localStorage.getItem('lamsAutosaveWindowId');
 				// check if autosave does not happen too often
-				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime) {
+				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime
+						&& lamsAutosaveWindowId && lamsAutosaveWindowId != autosaveWindowId) {
 					// this label is required only in tool which implement autosave
 					alert('<spring:escapeBody javaScriptEscape="true"><fmt:message key="label.prevent.learner.autosave.mutliple.tabs" /></spring:escapeBody>');
 					return false;
 				}
 				localStorage.setItem('lamsAutosaveTimestamp', currentTime);
+				localStorage.setItem('lamsAutosaveWindowId', autosaveWindowId);
 				return true;
 			}
 			
Index: lams_tool_scribe/web/WEB-INF/tags/Page5.tag
===================================================================
diff -u -r876e644c066e81c2721ffa085fd12f386e2f3bb6 -r1eb2143815418c6dc14f115acc6cc1ce7c1fed32
--- lams_tool_scribe/web/WEB-INF/tags/Page5.tag	(.../Page5.tag)	(revision 876e644c066e81c2721ffa085fd12f386e2f3bb6)
+++ lams_tool_scribe/web/WEB-INF/tags/Page5.tag	(.../Page5.tag)	(revision 1eb2143815418c6dc14f115acc6cc1ce7c1fed32)
@@ -165,16 +165,19 @@
 				$('#sidebar').show();
 			}
 
-			function preventLearnerAutosaveFromMultipleTabs(autosaveInterval) {
+			function preventLearnerAutosaveFromMultipleTabs(autosaveWindowId, autosaveInterval) {
 				let currentTime = new Date().getTime(),
-					lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp');
+						lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp'),
+						lamsAutosaveWindowId = +localStorage.getItem('lamsAutosaveWindowId');
 				// check if autosave does not happen too often
-				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime) {
+				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime
+						&& lamsAutosaveWindowId && lamsAutosaveWindowId != autosaveWindowId) {
 					// this label is required only in tool which implement autosave
 					alert('<spring:escapeBody javaScriptEscape="true"><fmt:message key="label.prevent.learner.autosave.mutliple.tabs" /></spring:escapeBody>');
 					return false;
 				}
 				localStorage.setItem('lamsAutosaveTimestamp', currentTime);
+				localStorage.setItem('lamsAutosaveWindowId', autosaveWindowId);
 				return true;
 			}
 
Index: lams_tool_spreadsheet/web/WEB-INF/tags/Page.tag
===================================================================
diff -u -r876e644c066e81c2721ffa085fd12f386e2f3bb6 -r1eb2143815418c6dc14f115acc6cc1ce7c1fed32
--- lams_tool_spreadsheet/web/WEB-INF/tags/Page.tag	(.../Page.tag)	(revision 876e644c066e81c2721ffa085fd12f386e2f3bb6)
+++ lams_tool_spreadsheet/web/WEB-INF/tags/Page.tag	(.../Page.tag)	(revision 1eb2143815418c6dc14f115acc6cc1ce7c1fed32)
@@ -163,16 +163,19 @@
 				$('#sidebar').show();
 			}
 
-			function preventLearnerAutosaveFromMultipleTabs(autosaveInterval) {
+			function preventLearnerAutosaveFromMultipleTabs(autosaveWindowId, autosaveInterval) {
 				let currentTime = new Date().getTime(),
-					lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp');
+						lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp'),
+						lamsAutosaveWindowId = +localStorage.getItem('lamsAutosaveWindowId');
 				// check if autosave does not happen too often
-				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime) {
+				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime
+						&& lamsAutosaveWindowId && lamsAutosaveWindowId != autosaveWindowId) {
 					// this label is required only in tool which implement autosave
 					alert('<spring:escapeBody javaScriptEscape="true"><fmt:message key="label.prevent.learner.autosave.mutliple.tabs" /></spring:escapeBody>');
 					return false;
 				}
 				localStorage.setItem('lamsAutosaveTimestamp', currentTime);
+				localStorage.setItem('lamsAutosaveWindowId', autosaveWindowId);
 				return true;
 			}
 			
Index: lams_tool_spreadsheet/web/WEB-INF/tags/Page5.tag
===================================================================
diff -u -r876e644c066e81c2721ffa085fd12f386e2f3bb6 -r1eb2143815418c6dc14f115acc6cc1ce7c1fed32
--- lams_tool_spreadsheet/web/WEB-INF/tags/Page5.tag	(.../Page5.tag)	(revision 876e644c066e81c2721ffa085fd12f386e2f3bb6)
+++ lams_tool_spreadsheet/web/WEB-INF/tags/Page5.tag	(.../Page5.tag)	(revision 1eb2143815418c6dc14f115acc6cc1ce7c1fed32)
@@ -165,16 +165,19 @@
 				$('#sidebar').show();
 			}
 
-			function preventLearnerAutosaveFromMultipleTabs(autosaveInterval) {
+			function preventLearnerAutosaveFromMultipleTabs(autosaveWindowId, autosaveInterval) {
 				let currentTime = new Date().getTime(),
-					lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp');
+						lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp'),
+						lamsAutosaveWindowId = +localStorage.getItem('lamsAutosaveWindowId');
 				// check if autosave does not happen too often
-				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime) {
+				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime
+						&& lamsAutosaveWindowId && lamsAutosaveWindowId != autosaveWindowId) {
 					// this label is required only in tool which implement autosave
 					alert('<spring:escapeBody javaScriptEscape="true"><fmt:message key="label.prevent.learner.autosave.mutliple.tabs" /></spring:escapeBody>');
 					return false;
 				}
 				localStorage.setItem('lamsAutosaveTimestamp', currentTime);
+				localStorage.setItem('lamsAutosaveWindowId', autosaveWindowId);
 				return true;
 			}
 
Index: lams_tool_survey/web/WEB-INF/tags/Page.tag
===================================================================
diff -u -r876e644c066e81c2721ffa085fd12f386e2f3bb6 -r1eb2143815418c6dc14f115acc6cc1ce7c1fed32
--- lams_tool_survey/web/WEB-INF/tags/Page.tag	(.../Page.tag)	(revision 876e644c066e81c2721ffa085fd12f386e2f3bb6)
+++ lams_tool_survey/web/WEB-INF/tags/Page.tag	(.../Page.tag)	(revision 1eb2143815418c6dc14f115acc6cc1ce7c1fed32)
@@ -163,16 +163,19 @@
 				$('#sidebar').show();
 			}
 
-			function preventLearnerAutosaveFromMultipleTabs(autosaveInterval) {
+			function preventLearnerAutosaveFromMultipleTabs(autosaveWindowId, autosaveInterval) {
 				let currentTime = new Date().getTime(),
-					lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp');
+						lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp'),
+						lamsAutosaveWindowId = +localStorage.getItem('lamsAutosaveWindowId');
 				// check if autosave does not happen too often
-				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime) {
+				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime
+						&& lamsAutosaveWindowId && lamsAutosaveWindowId != autosaveWindowId) {
 					// this label is required only in tool which implement autosave
 					alert('<spring:escapeBody javaScriptEscape="true"><fmt:message key="label.prevent.learner.autosave.mutliple.tabs" /></spring:escapeBody>');
 					return false;
 				}
 				localStorage.setItem('lamsAutosaveTimestamp', currentTime);
+				localStorage.setItem('lamsAutosaveWindowId', autosaveWindowId);
 				return true;
 			}
 			
Index: lams_tool_survey/web/WEB-INF/tags/Page5.tag
===================================================================
diff -u -r876e644c066e81c2721ffa085fd12f386e2f3bb6 -r1eb2143815418c6dc14f115acc6cc1ce7c1fed32
--- lams_tool_survey/web/WEB-INF/tags/Page5.tag	(.../Page5.tag)	(revision 876e644c066e81c2721ffa085fd12f386e2f3bb6)
+++ lams_tool_survey/web/WEB-INF/tags/Page5.tag	(.../Page5.tag)	(revision 1eb2143815418c6dc14f115acc6cc1ce7c1fed32)
@@ -165,16 +165,19 @@
 				$('#sidebar').show();
 			}
 
-			function preventLearnerAutosaveFromMultipleTabs(autosaveInterval) {
+			function preventLearnerAutosaveFromMultipleTabs(autosaveWindowId, autosaveInterval) {
 				let currentTime = new Date().getTime(),
-					lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp');
+						lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp'),
+						lamsAutosaveWindowId = +localStorage.getItem('lamsAutosaveWindowId');
 				// check if autosave does not happen too often
-				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime) {
+				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime
+						&& lamsAutosaveWindowId && lamsAutosaveWindowId != autosaveWindowId) {
 					// this label is required only in tool which implement autosave
 					alert('<spring:escapeBody javaScriptEscape="true"><fmt:message key="label.prevent.learner.autosave.mutliple.tabs" /></spring:escapeBody>');
 					return false;
 				}
 				localStorage.setItem('lamsAutosaveTimestamp', currentTime);
+				localStorage.setItem('lamsAutosaveWindowId', autosaveWindowId);
 				return true;
 			}
 
Index: lams_tool_task/web/WEB-INF/tags/Page.tag
===================================================================
diff -u -r876e644c066e81c2721ffa085fd12f386e2f3bb6 -r1eb2143815418c6dc14f115acc6cc1ce7c1fed32
--- lams_tool_task/web/WEB-INF/tags/Page.tag	(.../Page.tag)	(revision 876e644c066e81c2721ffa085fd12f386e2f3bb6)
+++ lams_tool_task/web/WEB-INF/tags/Page.tag	(.../Page.tag)	(revision 1eb2143815418c6dc14f115acc6cc1ce7c1fed32)
@@ -163,16 +163,19 @@
 				$('#sidebar').show();
 			}
 
-			function preventLearnerAutosaveFromMultipleTabs(autosaveInterval) {
+			function preventLearnerAutosaveFromMultipleTabs(autosaveWindowId, autosaveInterval) {
 				let currentTime = new Date().getTime(),
-					lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp');
+						lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp'),
+						lamsAutosaveWindowId = +localStorage.getItem('lamsAutosaveWindowId');
 				// check if autosave does not happen too often
-				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime) {
+				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime
+						&& lamsAutosaveWindowId && lamsAutosaveWindowId != autosaveWindowId) {
 					// this label is required only in tool which implement autosave
 					alert('<spring:escapeBody javaScriptEscape="true"><fmt:message key="label.prevent.learner.autosave.mutliple.tabs" /></spring:escapeBody>');
 					return false;
 				}
 				localStorage.setItem('lamsAutosaveTimestamp', currentTime);
+				localStorage.setItem('lamsAutosaveWindowId', autosaveWindowId);
 				return true;
 			}
 			
Index: lams_tool_task/web/WEB-INF/tags/Page5.tag
===================================================================
diff -u -r876e644c066e81c2721ffa085fd12f386e2f3bb6 -r1eb2143815418c6dc14f115acc6cc1ce7c1fed32
--- lams_tool_task/web/WEB-INF/tags/Page5.tag	(.../Page5.tag)	(revision 876e644c066e81c2721ffa085fd12f386e2f3bb6)
+++ lams_tool_task/web/WEB-INF/tags/Page5.tag	(.../Page5.tag)	(revision 1eb2143815418c6dc14f115acc6cc1ce7c1fed32)
@@ -165,16 +165,19 @@
 				$('#sidebar').show();
 			}
 
-			function preventLearnerAutosaveFromMultipleTabs(autosaveInterval) {
+			function preventLearnerAutosaveFromMultipleTabs(autosaveWindowId, autosaveInterval) {
 				let currentTime = new Date().getTime(),
-					lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp');
+						lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp'),
+						lamsAutosaveWindowId = +localStorage.getItem('lamsAutosaveWindowId');
 				// check if autosave does not happen too often
-				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime) {
+				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime
+						&& lamsAutosaveWindowId && lamsAutosaveWindowId != autosaveWindowId) {
 					// this label is required only in tool which implement autosave
 					alert('<spring:escapeBody javaScriptEscape="true"><fmt:message key="label.prevent.learner.autosave.mutliple.tabs" /></spring:escapeBody>');
 					return false;
 				}
 				localStorage.setItem('lamsAutosaveTimestamp', currentTime);
+				localStorage.setItem('lamsAutosaveWindowId', autosaveWindowId);
 				return true;
 			}
 
Index: lams_tool_vote/web/WEB-INF/tags/Page.tag
===================================================================
diff -u -r876e644c066e81c2721ffa085fd12f386e2f3bb6 -r1eb2143815418c6dc14f115acc6cc1ce7c1fed32
--- lams_tool_vote/web/WEB-INF/tags/Page.tag	(.../Page.tag)	(revision 876e644c066e81c2721ffa085fd12f386e2f3bb6)
+++ lams_tool_vote/web/WEB-INF/tags/Page.tag	(.../Page.tag)	(revision 1eb2143815418c6dc14f115acc6cc1ce7c1fed32)
@@ -163,16 +163,19 @@
 				$('#sidebar').show();
 			}
 
-			function preventLearnerAutosaveFromMultipleTabs(autosaveInterval) {
+			function preventLearnerAutosaveFromMultipleTabs(autosaveWindowId, autosaveInterval) {
 				let currentTime = new Date().getTime(),
-					lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp');
+						lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp'),
+						lamsAutosaveWindowId = +localStorage.getItem('lamsAutosaveWindowId');
 				// check if autosave does not happen too often
-				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime) {
+				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime
+						&& lamsAutosaveWindowId && lamsAutosaveWindowId != autosaveWindowId) {
 					// this label is required only in tool which implement autosave
 					alert('<spring:escapeBody javaScriptEscape="true"><fmt:message key="label.prevent.learner.autosave.mutliple.tabs" /></spring:escapeBody>');
 					return false;
 				}
 				localStorage.setItem('lamsAutosaveTimestamp', currentTime);
+				localStorage.setItem('lamsAutosaveWindowId', autosaveWindowId);
 				return true;
 			}
 			
Index: lams_tool_vote/web/WEB-INF/tags/Page5.tag
===================================================================
diff -u -r876e644c066e81c2721ffa085fd12f386e2f3bb6 -r1eb2143815418c6dc14f115acc6cc1ce7c1fed32
--- lams_tool_vote/web/WEB-INF/tags/Page5.tag	(.../Page5.tag)	(revision 876e644c066e81c2721ffa085fd12f386e2f3bb6)
+++ lams_tool_vote/web/WEB-INF/tags/Page5.tag	(.../Page5.tag)	(revision 1eb2143815418c6dc14f115acc6cc1ce7c1fed32)
@@ -165,16 +165,19 @@
 				$('#sidebar').show();
 			}
 
-			function preventLearnerAutosaveFromMultipleTabs(autosaveInterval) {
+			function preventLearnerAutosaveFromMultipleTabs(autosaveWindowId, autosaveInterval) {
 				let currentTime = new Date().getTime(),
-					lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp');
+						lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp'),
+						lamsAutosaveWindowId = +localStorage.getItem('lamsAutosaveWindowId');
 				// check if autosave does not happen too often
-				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime) {
+				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime
+						&& lamsAutosaveWindowId && lamsAutosaveWindowId != autosaveWindowId) {
 					// this label is required only in tool which implement autosave
 					alert('<spring:escapeBody javaScriptEscape="true"><fmt:message key="label.prevent.learner.autosave.mutliple.tabs" /></spring:escapeBody>');
 					return false;
 				}
 				localStorage.setItem('lamsAutosaveTimestamp', currentTime);
+				localStorage.setItem('lamsAutosaveWindowId', autosaveWindowId);
 				return true;
 			}
 
Index: lams_tool_whiteboard/web/WEB-INF/tags/Page.tag
===================================================================
diff -u -r876e644c066e81c2721ffa085fd12f386e2f3bb6 -r1eb2143815418c6dc14f115acc6cc1ce7c1fed32
--- lams_tool_whiteboard/web/WEB-INF/tags/Page.tag	(.../Page.tag)	(revision 876e644c066e81c2721ffa085fd12f386e2f3bb6)
+++ lams_tool_whiteboard/web/WEB-INF/tags/Page.tag	(.../Page.tag)	(revision 1eb2143815418c6dc14f115acc6cc1ce7c1fed32)
@@ -163,16 +163,19 @@
 				$('#sidebar').show();
 			}
 
-			function preventLearnerAutosaveFromMultipleTabs(autosaveInterval) {
+			function preventLearnerAutosaveFromMultipleTabs(autosaveWindowId, autosaveInterval) {
 				let currentTime = new Date().getTime(),
-					lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp');
+						lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp'),
+						lamsAutosaveWindowId = +localStorage.getItem('lamsAutosaveWindowId');
 				// check if autosave does not happen too often
-				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime) {
+				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime
+						&& lamsAutosaveWindowId && lamsAutosaveWindowId != autosaveWindowId) {
 					// this label is required only in tool which implement autosave
 					alert('<spring:escapeBody javaScriptEscape="true"><fmt:message key="label.prevent.learner.autosave.mutliple.tabs" /></spring:escapeBody>');
 					return false;
 				}
 				localStorage.setItem('lamsAutosaveTimestamp', currentTime);
+				localStorage.setItem('lamsAutosaveWindowId', autosaveWindowId);
 				return true;
 			}
 			
Index: lams_tool_whiteboard/web/WEB-INF/tags/Page5.tag
===================================================================
diff -u -r876e644c066e81c2721ffa085fd12f386e2f3bb6 -r1eb2143815418c6dc14f115acc6cc1ce7c1fed32
--- lams_tool_whiteboard/web/WEB-INF/tags/Page5.tag	(.../Page5.tag)	(revision 876e644c066e81c2721ffa085fd12f386e2f3bb6)
+++ lams_tool_whiteboard/web/WEB-INF/tags/Page5.tag	(.../Page5.tag)	(revision 1eb2143815418c6dc14f115acc6cc1ce7c1fed32)
@@ -165,16 +165,19 @@
 				$('#sidebar').show();
 			}
 
-			function preventLearnerAutosaveFromMultipleTabs(autosaveInterval) {
+			function preventLearnerAutosaveFromMultipleTabs(autosaveWindowId, autosaveInterval) {
 				let currentTime = new Date().getTime(),
-					lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp');
+						lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp'),
+						lamsAutosaveWindowId = +localStorage.getItem('lamsAutosaveWindowId');
 				// check if autosave does not happen too often
-				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime) {
+				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime
+						&& lamsAutosaveWindowId && lamsAutosaveWindowId != autosaveWindowId) {
 					// this label is required only in tool which implement autosave
 					alert('<spring:escapeBody javaScriptEscape="true"><fmt:message key="label.prevent.learner.autosave.mutliple.tabs" /></spring:escapeBody>');
 					return false;
 				}
 				localStorage.setItem('lamsAutosaveTimestamp', currentTime);
+				localStorage.setItem('lamsAutosaveWindowId', autosaveWindowId);
 				return true;
 			}
 
Index: lams_tool_wiki/web/WEB-INF/tags/Page.tag
===================================================================
diff -u -r876e644c066e81c2721ffa085fd12f386e2f3bb6 -r1eb2143815418c6dc14f115acc6cc1ce7c1fed32
--- lams_tool_wiki/web/WEB-INF/tags/Page.tag	(.../Page.tag)	(revision 876e644c066e81c2721ffa085fd12f386e2f3bb6)
+++ lams_tool_wiki/web/WEB-INF/tags/Page.tag	(.../Page.tag)	(revision 1eb2143815418c6dc14f115acc6cc1ce7c1fed32)
@@ -163,16 +163,19 @@
 				$('#sidebar').show();
 			}
 
-			function preventLearnerAutosaveFromMultipleTabs(autosaveInterval) {
+			function preventLearnerAutosaveFromMultipleTabs(autosaveWindowId, autosaveInterval) {
 				let currentTime = new Date().getTime(),
-					lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp');
+						lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp'),
+						lamsAutosaveWindowId = +localStorage.getItem('lamsAutosaveWindowId');
 				// check if autosave does not happen too often
-				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime) {
+				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime
+						&& lamsAutosaveWindowId && lamsAutosaveWindowId != autosaveWindowId) {
 					// this label is required only in tool which implement autosave
 					alert('<spring:escapeBody javaScriptEscape="true"><fmt:message key="label.prevent.learner.autosave.mutliple.tabs" /></spring:escapeBody>');
 					return false;
 				}
 				localStorage.setItem('lamsAutosaveTimestamp', currentTime);
+				localStorage.setItem('lamsAutosaveWindowId', autosaveWindowId);
 				return true;
 			}
 			
Index: lams_tool_wiki/web/WEB-INF/tags/Page5.tag
===================================================================
diff -u -r876e644c066e81c2721ffa085fd12f386e2f3bb6 -r1eb2143815418c6dc14f115acc6cc1ce7c1fed32
--- lams_tool_wiki/web/WEB-INF/tags/Page5.tag	(.../Page5.tag)	(revision 876e644c066e81c2721ffa085fd12f386e2f3bb6)
+++ lams_tool_wiki/web/WEB-INF/tags/Page5.tag	(.../Page5.tag)	(revision 1eb2143815418c6dc14f115acc6cc1ce7c1fed32)
@@ -165,16 +165,19 @@
 				$('#sidebar').show();
 			}
 
-			function preventLearnerAutosaveFromMultipleTabs(autosaveInterval) {
+			function preventLearnerAutosaveFromMultipleTabs(autosaveWindowId, autosaveInterval) {
 				let currentTime = new Date().getTime(),
-					lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp');
+						lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp'),
+						lamsAutosaveWindowId = +localStorage.getItem('lamsAutosaveWindowId');
 				// check if autosave does not happen too often
-				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime) {
+				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime
+						&& lamsAutosaveWindowId && lamsAutosaveWindowId != autosaveWindowId) {
 					// this label is required only in tool which implement autosave
 					alert('<spring:escapeBody javaScriptEscape="true"><fmt:message key="label.prevent.learner.autosave.mutliple.tabs" /></spring:escapeBody>');
 					return false;
 				}
 				localStorage.setItem('lamsAutosaveTimestamp', currentTime);
+				localStorage.setItem('lamsAutosaveWindowId', autosaveWindowId);
 				return true;
 			}
 
Index: lams_tool_zoom/web/WEB-INF/tags/Page.tag
===================================================================
diff -u -r876e644c066e81c2721ffa085fd12f386e2f3bb6 -r1eb2143815418c6dc14f115acc6cc1ce7c1fed32
--- lams_tool_zoom/web/WEB-INF/tags/Page.tag	(.../Page.tag)	(revision 876e644c066e81c2721ffa085fd12f386e2f3bb6)
+++ lams_tool_zoom/web/WEB-INF/tags/Page.tag	(.../Page.tag)	(revision 1eb2143815418c6dc14f115acc6cc1ce7c1fed32)
@@ -163,16 +163,19 @@
 				$('#sidebar').show();
 			}
 
-			function preventLearnerAutosaveFromMultipleTabs(autosaveInterval) {
+			function preventLearnerAutosaveFromMultipleTabs(autosaveWindowId, autosaveInterval) {
 				let currentTime = new Date().getTime(),
-					lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp');
+						lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp'),
+						lamsAutosaveWindowId = +localStorage.getItem('lamsAutosaveWindowId');
 				// check if autosave does not happen too often
-				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime) {
+				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime
+						&& lamsAutosaveWindowId && lamsAutosaveWindowId != autosaveWindowId) {
 					// this label is required only in tool which implement autosave
 					alert('<spring:escapeBody javaScriptEscape="true"><fmt:message key="label.prevent.learner.autosave.mutliple.tabs" /></spring:escapeBody>');
 					return false;
 				}
 				localStorage.setItem('lamsAutosaveTimestamp', currentTime);
+				localStorage.setItem('lamsAutosaveWindowId', autosaveWindowId);
 				return true;
 			}
 			
Index: lams_tool_zoom/web/WEB-INF/tags/Page5.tag
===================================================================
diff -u -r876e644c066e81c2721ffa085fd12f386e2f3bb6 -r1eb2143815418c6dc14f115acc6cc1ce7c1fed32
--- lams_tool_zoom/web/WEB-INF/tags/Page5.tag	(.../Page5.tag)	(revision 876e644c066e81c2721ffa085fd12f386e2f3bb6)
+++ lams_tool_zoom/web/WEB-INF/tags/Page5.tag	(.../Page5.tag)	(revision 1eb2143815418c6dc14f115acc6cc1ce7c1fed32)
@@ -165,16 +165,19 @@
 				$('#sidebar').show();
 			}
 
-			function preventLearnerAutosaveFromMultipleTabs(autosaveInterval) {
+			function preventLearnerAutosaveFromMultipleTabs(autosaveWindowId, autosaveInterval) {
 				let currentTime = new Date().getTime(),
-					lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp');
+						lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp'),
+						lamsAutosaveWindowId = +localStorage.getItem('lamsAutosaveWindowId');
 				// check if autosave does not happen too often
-				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime) {
+				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime
+						&& lamsAutosaveWindowId && lamsAutosaveWindowId != autosaveWindowId) {
 					// this label is required only in tool which implement autosave
 					alert('<spring:escapeBody javaScriptEscape="true"><fmt:message key="label.prevent.learner.autosave.mutliple.tabs" /></spring:escapeBody>');
 					return false;
 				}
 				localStorage.setItem('lamsAutosaveTimestamp', currentTime);
+				localStorage.setItem('lamsAutosaveWindowId', autosaveWindowId);
 				return true;
 			}
 
Index: lams_www/web/WEB-INF/tags/Page.tag
===================================================================
diff -u -r876e644c066e81c2721ffa085fd12f386e2f3bb6 -r1eb2143815418c6dc14f115acc6cc1ce7c1fed32
--- lams_www/web/WEB-INF/tags/Page.tag	(.../Page.tag)	(revision 876e644c066e81c2721ffa085fd12f386e2f3bb6)
+++ lams_www/web/WEB-INF/tags/Page.tag	(.../Page.tag)	(revision 1eb2143815418c6dc14f115acc6cc1ce7c1fed32)
@@ -163,16 +163,19 @@
 				$('#sidebar').show();
 			}
 
-			function preventLearnerAutosaveFromMultipleTabs(autosaveInterval) {
+			function preventLearnerAutosaveFromMultipleTabs(autosaveWindowId, autosaveInterval) {
 				let currentTime = new Date().getTime(),
-					lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp');
+						lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp'),
+						lamsAutosaveWindowId = +localStorage.getItem('lamsAutosaveWindowId');
 				// check if autosave does not happen too often
-				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime) {
+				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime
+						&& lamsAutosaveWindowId && lamsAutosaveWindowId != autosaveWindowId) {
 					// this label is required only in tool which implement autosave
 					alert('<spring:escapeBody javaScriptEscape="true"><fmt:message key="label.prevent.learner.autosave.mutliple.tabs" /></spring:escapeBody>');
 					return false;
 				}
 				localStorage.setItem('lamsAutosaveTimestamp', currentTime);
+				localStorage.setItem('lamsAutosaveWindowId', autosaveWindowId);
 				return true;
 			}
 			
Index: lams_www/web/WEB-INF/tags/Page5.tag
===================================================================
diff -u -r876e644c066e81c2721ffa085fd12f386e2f3bb6 -r1eb2143815418c6dc14f115acc6cc1ce7c1fed32
--- lams_www/web/WEB-INF/tags/Page5.tag	(.../Page5.tag)	(revision 876e644c066e81c2721ffa085fd12f386e2f3bb6)
+++ lams_www/web/WEB-INF/tags/Page5.tag	(.../Page5.tag)	(revision 1eb2143815418c6dc14f115acc6cc1ce7c1fed32)
@@ -165,16 +165,19 @@
 				$('#sidebar').show();
 			}
 
-			function preventLearnerAutosaveFromMultipleTabs(autosaveInterval) {
+			function preventLearnerAutosaveFromMultipleTabs(autosaveWindowId, autosaveInterval) {
 				let currentTime = new Date().getTime(),
-					lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp');
+						lamsAutosaveTimestamp = +localStorage.getItem('lamsAutosaveTimestamp'),
+						lamsAutosaveWindowId = +localStorage.getItem('lamsAutosaveWindowId');
 				// check if autosave does not happen too often
-				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime) {
+				if (autosaveInterval > 0 && lamsAutosaveTimestamp && lamsAutosaveTimestamp + autosaveInterval/2 > currentTime
+						&& lamsAutosaveWindowId && lamsAutosaveWindowId != autosaveWindowId) {
 					// this label is required only in tool which implement autosave
 					alert('<spring:escapeBody javaScriptEscape="true"><fmt:message key="label.prevent.learner.autosave.mutliple.tabs" /></spring:escapeBody>');
 					return false;
 				}
 				localStorage.setItem('lamsAutosaveTimestamp', currentTime);
+				localStorage.setItem('lamsAutosaveWindowId', autosaveWindowId);
 				return true;
 			}