My new game - with Chrome issues

well here is the game Marvin the Marble

The problem is that when i test it in the preview browser with Internet Explorer it works perfectly. I get 60FPS and sound works. When i copy it to my webserver no sound in Internet Explorer.

Now my problem gets worse with Chrome. I get sound but the FPS drop to 34.

I'm going through the code still, but nothing that would solve the problems.

I just updated my video driver and made sure i'm using the latest of IE9 and Chrome. I still get the same results. I then found a benchmark test that mentions that chrome is really fast for 2dcanvas and doesn't even list IE9.

HTML5 Performance Benchmarks

I guess my question is why/how could IE9 be performing this much better then Chrome?

Well I know why no audio with IE9, it only supports AAC and MP3 audio. I Used HTML5 Test to test my browsers and IE9 scored 138 and Chrome18 scored 400. This still doesn't tell me why chrome is running at half the speed of IE9.

Well after some searching on google i found that the mime type for m4a audio was not setup on my webserver. I fixed that problem and now i have audio with IE9 working. Chrome FPS is now 43 after the change.

Hey Rfisher, You should check through the blogs, Ashley has made a pretty detailed post about browsers - it might have saved you some trouble.

Not sure why IE9 would ever outperform Chrome. Very cool that you got audio to work in IE9 though.

Audio definitely works in IE, just run it in IIS Express. Also, IE10 + Windows 8 has a new Javascript rendering engine that does outperform Chrome.