Hls.isSupported(): ensure that MediaSource.isTypeSupported is a function

related to https://github.com/dailymotion/hls.js/issues/497
normenster · Jun 13, 2016 · cb78a58 · cb78a58
1 parent 85c6ca7
commit cb78a58
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/src/hls.js b/src/hls.js
@@ -28,7 +28,9 @@ class Hls {
   }
 
   static isSupported() {
-    return (window.MediaSource && window.MediaSource.isTypeSupported('video/mp4; codecs="avc1.42E01E,mp4a.40.2"'));
+    return (window.MediaSource &&
+            typeof window.MediaSource.isTypeSupported === 'function' &&
+            window.MediaSource.isTypeSupported('video/mp4; codecs="avc1.42E01E,mp4a.40.2"'));
   }
 
   static get Events() {