Canvas3D: gl.getString fails

[Stefan Monov76]

As pointed out in this question of mine, I want to figure out what version of ESSL is used by Qt on my PC.

My code (in the initializeGL handler):

console.log(gl.getString(gl.SHADING_LANGUAGE_VERSION));

I'm getting the following error:

TypeError: Property 'getString' of object QtCanvas3D::CanvasContext(0x682d530) is not a function

Any ideas?

Notes:

• I'm using GL ES mode in Qt. But that's not the problem, because ES does have glGetString.
• Other GL functions and rendering do work.