this post was submitted on 25 Mar 2025
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milan@discuss.tchncs.de
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Does my Lemmy instance support video streaming? tchncs shows ❌ Error: Failed to fetch (aeharding.github.io)
submitted 10 months ago by squirrel@discuss.tchncs.de to c/tchncs@discuss.tchncs.de
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Many Lemmy instances are misconfigured, which can break progressive video streaming and even basic image loading in strange ways. The latest default lemmy-ansible config handles this correctly, but many instances use custom proxy setups that cause issues. This tool will check that:

  • ✅ The instance supports HTTP range requests for proper video streaming
  • ✅ CORS headers are properly set for API and pictrs media

The instance result shows:

discuss.tchncs.de ❌ Error: Failed to fetch

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[–] milan@discuss.tchncs.de 3 points 9 months ago (2 children)

Note: will act on this asap, did not forget

[–] squirrel@discuss.tchncs.de 1 points 9 months ago

Thank you Milan!

[–] JRaccoon@discuss.tchncs.de 1 points 3 weeks ago* (last edited 3 weeks ago) (1 children)

Any updates on this? I mean, it's not a critical issue by any means, but to my understanding (without knowing the specifics of your hosting setup) it could be an easy fix.

[–] milan@discuss.tchncs.de 1 points 1 week ago* (last edited 1 week ago)

i have added some headers (most interesting perhaps slice) - however arte currently times out when testing, aeharding does not seem to present opengraph stuff to test, peertube seemed to work normally before my adjustments

playing back an uploaded video didnt look like it was sliced however it played without showing any obvious errors anywhere

i have added proxy_hide_header Access-Control-Allow-Origin; which seems to help with that reflected origin