diff --git a/src/main/java/org/olat/core/dispatcher/mapper/MapperDispatcher.java b/src/main/java/org/olat/core/dispatcher/mapper/MapperDispatcher.java
--- a/src/main/java/org/olat/core/dispatcher/mapper/MapperDispatcher.java
+++ b/src/main/java/org/olat/core/dispatcher/mapper/MapperDispatcher.java
@@ -89,7 +89,18 @@
 		} else {
 			smappath = subInfo.substring(0, slashPos);
 		}
-		
+
+		// Remove jsession ID if available for media plugin compatibility (e.g. iOS 7 / iOS 10 video playback)
+		int jsessionPos = subInfo.indexOf(";jsessionid=");
+		if (jsessionPos != -1) {
+			int paramPos = subInfo.indexOf("?");
+			if (paramPos == -1) {
+				subInfo = subInfo.substring(0, jsessionPos);				
+			} else {
+				subInfo = subInfo.substring(0, jsessionPos) + subInfo.substring(paramPos);
+			}
+		}
+
 		//legacy???
 		DBFactory.getInstance().commitAndCloseSession();
 
diff --git a/src/main/java/org/olat/modules/video/manager/VideoMediaMapper.java b/src/main/java/org/olat/modules/video/manager/VideoMediaMapper.java
--- a/src/main/java/org/olat/modules/video/manager/VideoMediaMapper.java
+++ b/src/main/java/org/olat/modules/video/manager/VideoMediaMapper.java
@@ -42,8 +42,9 @@
 		VFSItem mediaFile = mediaBase.resolve(relPath);
 		if (mediaFile instanceof VFSLeaf && !relPath.endsWith("xml")){
 			VFSMediaResource res =  new VFSMediaResource((VFSLeaf)mediaFile);
-			if (relPath.toLowerCase().endsWith("srt")) {
-				// SRT caption files are supposed to be UTF-8, see
+			String lowerPath = relPath.toLowerCase();
+			if (lowerPath.endsWith("srt") || lowerPath.endsWith("vtt")) {
+				// SRT / VTT caption files are supposed to be UTF-8, see
 				// https://en.wikipedia.org/wiki/SubRip#Text_encoding
 				res.setEncoding("utf-8");				
 			}
diff --git a/src/main/java/org/olat/modules/video/ui/VideoDisplayController.java b/src/main/java/org/olat/modules/video/ui/VideoDisplayController.java
--- a/src/main/java/org/olat/modules/video/ui/VideoDisplayController.java
+++ b/src/main/java/org/olat/modules/video/ui/VideoDisplayController.java
@@ -137,6 +137,9 @@
 				listenTo(commentsAndRatingCtr);				
 				mainVC.put("commentsAndRating", commentsAndRatingCtr.getInitialComponent());
 			}
+			
+			// Add session info for iOS 10 missing-session workaround
+			mainVC.contextPut("jsession", ";jsessionid=" + ureq.getHttpReq().getSession().getId());
 
 			// Finally load the video, transcoded versions and tracks
 			loadVideo(video);
diff --git a/src/main/java/org/olat/modules/video/ui/_content/video_run.html b/src/main/java/org/olat/modules/video/ui/_content/video_run.html
--- a/src/main/java/org/olat/modules/video/ui/_content/video_run.html
+++ b/src/main/java/org/olat/modules/video/ui/_content/video_run.html
@@ -1,18 +1,18 @@
 <div class="o_video_run o_block_large_bottom clearfix">
 	<div class="olatFlashMovieViewer">
-		<video id="$r.getId("o_vid")" width="$width" height="$height" #if($usePoster) poster="$masterUrl/poster.jpg" #end controls  preload="none" oncontextmenu="return false;" #if( $autoplay ) autoplay #end class="o_video">			
+		<video id="$r.getId("o_vid")" width="$width" height="$height" #if($usePoster) poster="$masterUrl/poster.jpg" #end controls  playsinline preload="none" oncontextmenu="return false;" #if( $autoplay ) autoplay #end class="o_video">			
 	    	#foreach($video in $videos)
 	    		#set($position = $velocityCount - 1)
-	    		<source type="video/mp4" src="$transcodedUrl/${video.getResolution()}video.mp4" title="$displayTitles.get($position) ($r.formatBytes(${video.getSize()}))" />
+	    		<source type="video/mp4" src="$transcodedUrl/${video.getResolution()}video.mp4${jsession}" title="$displayTitles.get($position) ($r.formatBytes(${video.getSize()}))" />
 	    	#end	    	
 	    	## Use master video file if not optimized video is found
 	    	#if ($videos.size() == 0)
-		    	<source type="video/mp4" src="$masterUrl/video.mp4" />
+		    	<source type="video/mp4" src="$masterUrl/video.mp4${jsession}" />
 		    #end
 	    	
 	  		#if( $trackfiles )
 		  		#foreach( $track in $trackfiles.keySet())
-		  		<track kind="subtitles" src="$masterUrl/$trackfiles.get($track)" srclang="$track" />
+		  		<track kind="subtitles" src="$masterUrl/$trackfiles.get($track)${jsession}" srclang="$track" />
 		  		#end
 		  	#end
 		</video>