Added very rudimentary support for packages with multiple subtitle files,

treating the first subs file as the only file so the button can remain a toggle

player.js

@@ -32,7 +32,8 @@ function init() {
         var mainstream = document.querySelector('.main > video')
 
         // A bit too magic with all the [0] but what can you do...
-        var defaultres = Object.keys(presentation.sources[0].video)[0]
+        var defaultres = Object.keys(
+            Object.values(presentation.sources)[0].video)[0]
 
         if('resolution' in cookies) {
             defaultres = cookies.resolution
@@ -77,7 +78,7 @@ function init() {
             setupFullscreen()
             setupCopying(mainstream)
             setupVolume(mainstream, cookies.volume, cookies.mute)
-            setupResSwitching(presentation.sources, defaultres)
+            setupResSwitching(Object.values(presentation.sources), defaultres)
             setupSwitching(mainstream)
             setupSync(mainstream)
             setupPlayback(body, mainstream)
@@ -198,13 +199,13 @@ function swapText(element) {
 }
 
 function loadStreams(presentation, mainstream, defaultres) {
-    var streamlist = presentation.sources
+    var streamlist = Object.values(presentation.sources)
     var token = presentation.token
     var mainparent = mainstream.parentNode
     var template = document.getElementById('stream-template')
 
     var main = streamlist[0]
-    
+
     if(typeof main.video === "string") {
         mainstream.src = main.video +"?token="+ token
     } else {
@@ -654,10 +655,14 @@ function setupSubs(subs, subCookie, accessToken) {
         button.parentNode.removeChild(button)
         return
     }
+
+    var subsName = Object.keys(subs)[0]
+    var subsFile = subs[subsName]
+
     document.querySelectorAll('video').forEach(function(stream) {
         var subtrack = document.createElement('track')
         subtrack.kind = 'subtitles'
-        subtrack.src = subs + '?token=' + accessToken
+        subtrack.src = subsFile + '?token=' + accessToken
         stream.appendChild(subtrack)
     })