Steps to reproduce the issue:
- Install Violentmonkey via Popular Extensions/Via Firefox addons
- Install the userscript: https://greasyfork.org/en/scripts/397848-comic-looms
- Open any website supported by the extension, for example:
- https://www.pixiv.net/en/users/3143520
- https://www.artstation.com/hichamhabchi1
- Click on this icon in the bottom left corner of the screen
Expected result:
The images should load, and it should be possible to scroll through them from the script's interface. But this doesn't happen; errors are thrown. The script works fine on Firefox.
I tried disabling Content Blockers and Tracking Prevention.
Console log sample:
[Error] Cross origin requests are only supported for HTTP.
[Error] Fetch API cannot load blob:moz-extension://aecec67f-0d10-4fa7-b7c7-609a2db280cf/4de91f7c-e85d-4af1-b933-1e644b24cfa2 due to access control checks.
[Error] TypeError: Load failed
error
[Warning] 10/12/2025, 7:41:41 PM – "EHVP:fetch image error, try times: 1, error:" – Error: fetch image data is empty, image url:https://cdnb.artstation.com/p/assets/images/images/040/965/997/large/hicham-habchi-lines.jpg?1630398240 — hichamhabchi1:1846 (hichamhabchi1, line 1586)
Error: fetch image data is empty, image url:https://cdnb.artstation.com/p/assets/images/images/040/965/997/large/hicham-habchi-lines.jpg?1630398240 — hichamhabchi1:1846
[Error] Cross origin requests are only supported for HTTP.
[Error] Fetch API cannot load blob:moz-extension://aecec67f-0d10-4fa7-b7c7-609a2db280cf/12d0c945-fbb9-4570-a201-202fd509fbc1 due to access control checks.
[Error] TypeError: Load failed
error
[Warning] 10/12/2025, 7:41:41 PM – "EHVP:fetch image error, try times: 2, error:" – Error: fetch image data is empty, image url:https://cdnb.artstation.com/p/assets/images/images/040/965/997/large/hicham-habchi-lines.jpg?1630398240 — hichamhabchi1:1846 (hichamhabchi1, line 1586)
Error: fetch image data is empty, image url:https://cdnb.artstation.com/p/assets/images/images/040/965/997/large/hicham-habchi-lines.jpg?1630398240 — hichamhabchi1:1846
[Error] Cross origin requests are only supported for HTTP.
[Error] Fetch API cannot load blob:moz-extension://aecec67f-0d10-4fa7-b7c7-609a2db280cf/b950dd1c-2556-46a3-8f06-0d72830859ad due to access control checks.
Version 0.99.136.2-rc (WebKit 623.1.8.0.0)
Tahoe (26)
