gl.drawingBufferWidth / Height

[mattdesl]

Not sure where to post general GL issues?

Cocoon does not support these read-only attributes in the WebGL spec:

gl.drawingBufferWidth
gl.drawingBufferHeight

https://www.khronos.org/registry/webgl/specs/latest/1.0/#2.3

This causes some modules to break that rely on it, like gl-post

[JiDW]

I think you should post it on ludei forum, I believe this git is only about the cocoonjs javascript plugins, not the core application.
http://support.ludei.com/hc/en-us/articles/201949877-How-to-report-a-bug