The WebGL example fails

[exarkun]

I tried running the WebGL example using #4 (with a further loosening of reflex constraints to allow 0.9). The 2d canvas pieces seem to work fine but the WebGL example gets as far as the first buildShader call and then ... something bad happens to it. I don't really understand what, but no further updates are possible in the web view afterwards. I attempted to further narrow the cause but one or both of getShaderParameterF (to retrieve COMPILE_STATUS) and getShaderInfoLogF seem to be what cause the web view to become unusable so I couldn't figure out how to see any more details.