firefox 4rc 不支持webgl 1.0!!!

webgl 1.0已经完成了，但是我用canvas.getContext("webgl");无法实现webgl的初始化，要用"experimental-webgl"才行

参考资料
https://www.khronos.org/registry/webgl/specs/1.0/

2.3 The WebGL Viewport

https://developer.mozilla.org/en/WebGL/ ... with_WebGL

The context name "experimental-webgl" is a temporary name for the context for use during development of the specification; the name "webgl" will be used once the spec is finalized.