HTML5 Saving Image from a Canvas in Javascript (Android)

Im trying to make a HTML5 signature capture in Javascript.

It works already but i got a problem running it o开发者_JAVA百科n Android.

The function canvas.toDataURL(); does not work on Androids standard browser.

Does someone know an alternative for saving a Canvas to an image(png)? Or making it run on Android?

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Take a look at Hans Schmucker's workaround/reimplementation:

http://forum.xda-developers.com/showthread.php?t=1251575