Fix check for FlashCanvas.
Fix check for FlashCanvas.

HumbleSoftware/envisionjs,RobertoMalatesta/envisionjs,notepad104/envisionjs,HumbleSoftware/envisionjs,bigspotteddog/envisionjs,bigspotteddog/envisionjs,RobertoMalatesta/envisionjs,notepad104/envisionjs,RobertoMalatesta/envisionjs,notepad104/envisionjs