Enable subtitles on Funimation web player using VideoJS addRemoteTextTrack
// get the player iframe
var frame = document.getElementsByTagName("iframe")[0].contentWindow
// get the videojs object inside the iframe
// fp is the instance of the FunimationPlayer inside the iframe and stores the text track info
// vtt is usually the first item in the text track list
frame.videojs.getPlayer("brightcove-player").addRemoteTextTrack(frame.fp.currentVideo.source.textTracks[0])