diff --git a/src/lib/libsdl.js b/src/lib/libsdl.js
index 71dbc4756eff5..2359d8e3d570d 100644
--- a/src/lib/libsdl.js
+++ b/src/lib/libsdl.js
@@ -2802,7 +2802,6 @@ var LibrarySDL = {
       var url = URL.createObjectURL(blob);
       audio = new Audio();
       audio.src = url;
-      audio.mozAudioChannelType = 'content'; // bugzilla 910340
     }
 
     var id = SDL.audios.length;
@@ -2839,7 +2838,6 @@ var LibrarySDL = {
       webAudio = { decodedBuffer: buffer };
     } else {
       audio = new Audio();
-      audio.mozAudioChannelType = 'content'; // bugzilla 910340
       // Record the number of channels and frequency for later usage
       audio.numChannels = SDL.mixerNumChannels;
       audio.frequency = SDL.mixerFrequency;
diff --git a/test/codesize/test_codesize_hello_dylink_all.json b/test/codesize/test_codesize_hello_dylink_all.json
index 22ff315a86db7..4f01cff8c72f4 100644
--- a/test/codesize/test_codesize_hello_dylink_all.json
+++ b/test/codesize/test_codesize_hello_dylink_all.json
@@ -1,7 +1,7 @@
 {
-  "a.out.js": 268975,
+  "a.out.js": 268945,
   "a.out.nodebug.wasm": 588047,
-  "total": 857022,
+  "total": 856992,
   "sent": [
     "IMG_Init",
     "IMG_Load",