Map does not render on Tor Browser

[contrapunctus-1]

Describe the bug

1. Open https://streets.gl/ in Tor Browser.
2. The UI is visible, but the map is not.

Screenshots

System information

• OS: Linux 6.6.15-amd64 #​1 SMP PREEMPT_DYNAMIC Debian 6.6.15-2 (2024-02-04) x86_64 GNU/Linux
• Browser with version: Tor Browser 13.0.12 (based on Mozilla Firefox 115.9.0esr)

Here's a log from the inspector.
streets.gl_Archive [24-03-21 01-12-43].har.zip

[TimGoodwyn]

I get the same behaviour on plain Firefox 123.0.1 on Mac OS 12.6.5

[applemayexist]

I can reproduce on Tor Browser 13.0.13, but I would think that this is a feature, not a bug. WebGL can be used to fingerprint your device, and so Tor is likely disabling it.

[contrapunctus-1]

FWIW Tor Browser is able to render demo.f4map.com and maps.jawg.io (both of which have 3D buildings) just fine.

This looks relevant - https://gitlab.torproject.org/legacy/trac/-/issues/16005

[applemayexist]

You're right, it turns out WebGL is enabled, but only WebGL 1.0. Visiting about:support shows a large list of enabled WebGL 1.0 extensions, whereas WebGL 2.0 is empty. And sure enough, streets.gl uses WebGL 2.0. Unfortunately I wasn't able to find anything about enabling WebGL 2.0 on Tor.