Webm File types don't play in Hover Zoom on Firefox

[Kitt262]

---

name: Webm Files Hover Zoom
about: Webm File types don't play in Hover Zoom on firefox
title: ''
labels: bug
assignees: ''

---

Expected behaviour

Hovering over a WEBM file on firefox should autoplay that file in the hovered window.

Actual behaviour

Hovering over a WEBM type file will show a greyed out image of the first frame, and the text "No video with supported format and MIME type found." It also produces the javascript error in the image below each time a WEBM file is hovered over, yielding this error and warning:

Cross-Origin Request Blocked: The Same Origin Policy disallows reading the remote resource at WEBM-RESOURCE-LINK.webm. (Reason: CORS header ‘Access-Control-Allow-Origin’ missing). Status code: 206. (picture shown below)

Invalid URI. Load of media resource failed.

And links the following resource Link

I'm seeing this behaviour on

Firefox Version 127.0.2 (latest as of July 4 2024) Tampermonkey

Steps to reproduce

Hover over WEBM File on firefox with hover zoom enabled.

Exported settings

This issue persists with reset settings

[hackerTiger21]

Does this behavior persist if you disable all browser extensions other than Tampermonkey? As of now, I'm not seeing any issues with cross-origin requests from the CDN.