Mapbox showing a black rectangle on Firefox

I am having an issue with a Mapbox showing up just fine on Edge, Chrome, or Opera but not on Firefox either standard or Developer edition. See this CodePen on Firefox and it will appear black, on any other browser it is fine.

Any idea why?

I viewed in Firefox 99.01 x64. I don’t see the problem.

Seems fine for me in Firefox 99.0.1 (and in Waterfox G4.1.1 and PaleMoon 29.4.6).

Edit: shoulda said Windows 10.

Also fine here, Firefox 99.0 on Ubuntu 21.10.

It’s fine on my iMac also.

Well, indeed it is looking for me too know !


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