diff -r 20e00017dd60 -r 10974bff4dae web/res/metadataplayer/AdaptivePlayer.js
--- a/web/res/metadataplayer/AdaptivePlayer.js	Fri Dec 11 18:11:13 2015 +0100
+++ b/web/res/metadataplayer/AdaptivePlayer.js	Tue Dec 29 13:25:14 2015 +0100
@@ -5,7 +5,7 @@
 IriSP.Widgets.AdaptivePlayer.prototype = new IriSP.Widgets.Widget();
 
 IriSP.Widgets.AdaptivePlayer.prototype.defaults = {
-    mime_type: "video/mp4",
+    mime_type: 'video/mp4; codecs="avc1.42E01E"',
     normal_player: "HtmlPlayer",
     fallback_player: "JwpPlayer"
 };
@@ -20,7 +20,7 @@
         _opts = {},
         _canPlayType = document.createElement('video').canPlayType(this.mime_type);
     
-    _opts.type = (_canPlayType == "maybe" || _canPlayType == "probably") ? this.normal_player : this.fallback_player;
+    _opts.type = (_canPlayType !== "no") ? this.normal_player : this.fallback_player;
     
     for (var i = 0; i < _props.length; i++) {
         if (typeof this[_props[i]] !== "undefined") {