From 8496b3d1f5441e34938e197a0686862f69fc6934 Mon Sep 17 00:00:00 2001
From: redSpoutnik <15638041+redSpoutnik@users.noreply.github.com>
Date: Tue, 8 Oct 2019 21:16:33 +0200
Subject: [PATCH] Fix subtitle sync for .vtt

---
 src/components/htmlvideoplayer/plugin.js | 15 ++++++---------
 1 file changed, 6 insertions(+), 9 deletions(-)

diff --git a/src/components/htmlvideoplayer/plugin.js b/src/components/htmlvideoplayer/plugin.js
index 27e02349c0..95da82a26b 100644
--- a/src/components/htmlvideoplayer/plugin.js
+++ b/src/components/htmlvideoplayer/plugin.js
@@ -580,18 +580,15 @@ define(['browser', 'require', 'events', 'apphost', 'loading', 'dom', 'playbackMa
 
             Array.from(videoElement.textTracks)
             .filter(function(trackElement) {
-                if (customTrackIndex === -1 ) {
-                    // get showing .vtt textTacks
-                    return trackElement.mode === 'showing';
-                } else {
-                    // get current .ass textTrack
-                    return ("textTrack" + customTrackIndex) === trackElement.id;
-                }
+                // get showing .vtt textTacks
+                return (trackElement.mode === 'showing') ||
+                // get current .ass textTrack
+                (("textTrack" + customTrackIndex) === trackElement.id);
             })
             .forEach(function(trackElement) {
 
-                var track = mediaStreamTextTracks.filter(function(stream) {
-                    return ("textTrack" + stream.Index) === trackElement.id;
+                var track = customTrackIndex === -1 ? null : mediaStreamTextTracks.filter(function (t) {
+                    return t.Index === customTrackIndex;
                 })[0];
 
                 if(track) {