I have been using this 3D rendering of the ISS for months now for a project. All of the sudden it doesn't work. It looks like it's going to load, the progress bar starts moving but only gets to about 5% and then the whole image turns black.

https://en.wikipedia.org/wiki/International_Space_Station#/media/File:ISS_2016.stl

It still works on my other laptop connected to the same network, etc. I've tried it with Firefox, Chrome, and IE and disabled add-ins, restarted the computer, logged in with different user accounts -- nothing.

So the question is: what software or technology enables STL files to be rendered in browsers, and how can I troubleshoot this? Obviously if it didn't work on my other laptop I'd suspect that there's a problem with the STL file itself, but that's not the case, so I'm thinking something changed on this laptop, but what?

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