Proposed solution for issue videojs#656 - "Default flag not working o…

…n tracks (subtitles, captions)"

Added additional check to look for auto preload option to avoid loading external captions, subtitles, etc. file on default

src/js/tracks.js

@@ -745,6 +745,12 @@ vjs.TextTrackMenuItem = vjs.MenuItem.extend({
     vjs.MenuItem.call(this, player, options);
 
     this.player_.on(track.kind() + 'trackchange', vjs.bind(this, this.update));
+
+    // Add check for auto preload option to not load captions, subtitles, etc. on default
+    var preload = player.options_['preload'];
+    if(track.dflt() && preload === 'auto') {
+      this.player_.showTextTrack(this.track.id_, this.track.kind());
+    }
   }
 });