GL error on android for Going Home

[jdm]

http://goinghome.302chanwoo.com/

On android there's a panic from an unexpected GL error, then libunwind segfaults while handling the panic.

[jdm]

There is no GL error on mac desktop, only:

ERROR 2018-09-20T17:20:34Z: script::dom::bindings::error: Error at http://goinghome.302chanwoo.com/build/script.js?v=180618:131:22289 b.style is undefined
ERROR 2018-09-20T17:20:34Z: script::dom::bindings::error: Error at http://goinghome.302chanwoo.com/:167:12 CW is not a constructor

[jdm]

The plot thickens - when I build with the NDK15c to avoid the libunwind segfault, I hit a panic when a WebGLTexture object is GCed and the WebGL thread no longer exists.

[jdm]

The underlying GC error is reproducible with the following page:

<canvas id="c"></canvas>
<script>
var c = document.getElementById('c');
var gl = c.getContext('webgl');
var r = gl.createRenderbuffer();
gl.bindRenderbuffer(gl.RENDERBUFFER, r);
console.log(gl.getError());
gl.renderbufferStorage(gl.RENDERBUFFER, gl.DEPTH_STENCIL, 1024, 1024);
console.log(gl.getError());
</script>

[jdm]

It appears that the GL drivers don't like the DEPTH_STENCIL format.

[jdm]

I suspect that Gecko internally uses DEPTH24_STENCIL8 in place of DEPTH_STENCIL, per https://searchfox.org/mozilla-central/source/dom/canvas/WebGLFormats.cpp#822-823.