Index: lams_tool_doku/src/java/org/lamsfoundation/lams/tool/dokumaran/web/controller/MonitoringController.java
===================================================================
diff -u -r1621b6daf8385b83e75f7ffde03c017b05c12487 -r4995c092afcca4763bc902952e43f19fbfa200bd
--- lams_tool_doku/src/java/org/lamsfoundation/lams/tool/dokumaran/web/controller/MonitoringController.java	(.../MonitoringController.java)	(revision 1621b6daf8385b83e75f7ffde03c017b05c12487)
+++ lams_tool_doku/src/java/org/lamsfoundation/lams/tool/dokumaran/web/controller/MonitoringController.java	(.../MonitoringController.java)	(revision 4995c092afcca4763bc902952e43f19fbfa200bd)
@@ -316,20 +316,26 @@
     }
 
     @RequestMapping("/startGalleryWalk")
+    @ResponseBody
+    @ResponseStatus(HttpStatus.OK)
     private void startGalleryWalk(HttpServletRequest request) throws IOException {
 	Long toolContentId = WebUtil.readLongParam(request, DokumaranConstants.ATTR_TOOL_CONTENT_ID, false);
 
 	dokumaranService.startGalleryWalk(toolContentId);
     }
 
     @RequestMapping("/finishGalleryWalk")
+    @ResponseBody
+    @ResponseStatus(HttpStatus.OK)
     private void finishGalleryWalk(HttpServletRequest request) throws IOException {
 	Long toolContentId = WebUtil.readLongParam(request, DokumaranConstants.ATTR_TOOL_CONTENT_ID, false);
 
 	dokumaranService.finishGalleryWalk(toolContentId);
     }
 
     @RequestMapping("/enableGalleryWalkLearnerEdit")
+    @ResponseBody
+    @ResponseStatus(HttpStatus.OK)
     private void enableGalleryWalkLearnerEdit(HttpServletRequest request) throws IOException {
 	Long toolContentId = WebUtil.readLongParam(request, DokumaranConstants.ATTR_TOOL_CONTENT_ID, false);