Media viewer gets stuck on black screen after trying to open a .stl (3D) file on the file page, e.g. https://en.wikipedia.org/wiki/File:Compound_of_five_cubes.stl.
It navigates to https://en.wikipedia.org/wiki/File:Compound_of_five_cubes.stl#/media/https://upload.wikimedia.org/wikipedia/commons/e/e5/Compound_of_five_cubes.stl when clicking the file thumbnail, which doesn't work.
Clicking on the file thumbnail causes the bug, while clicking "Open in Media Viewer" works correctly.
Likely related to recent work in T335997.
Associated error report is TypeError: mw.mmv.MultimediaViewerBootstrap is not a constructor or TypeError: undefined is not a constructor (evaluating 'new mw.mmv. MultimediaViewerBootstrap()')
1501 errors in last 7 days
https://logstash.wikimedia.org/goto/ac090e509b9fc93e51ae1f8507b9f326