webp support was dropped in d1f2e

I can confirm downgrading to 3.1.0 fixes this issue for us.

We had the same issue with WebP module and Stage File Proxy. After rolling back to 3.1.0 the issue is gone.

Same case. 3.1.0 is the last working version.

MRs are welcome

I think the image download controller has to similar things. \Drupal\image\Controller\ImageStyleDownloadController::deliver uses \Drupal\image\Controller\ImageStyleDownloadController::getUriWithoutConvertedExtension

Being hit by the same issue.

Is going back to 3.1.0 currently the only solution?

I've pushed the potential fix for this problem with the explanations in comments.

Someone experiencing this issue want to test out the MR?

Hi, I just came here because after enabling Webp module on the develop environment the images were no longer downloaded through Stagefileproxy. Production has no Webp module enabled at this point so a web style cannot be downloaded.
Only after using the patch from the MR the original image started to download.

I did hit a timeout though, some files may be quite large to download. Not sure if tweaking the timeout is something the Stage File Proxy module should provide?

using MR, original jpeg is downloaded as expected, however file is saved using .webp extension.

Now we have 2 MRs, should only have 1

I think we want to handle all image types. Not just webp. AVIF just got added to 11.2 and will face a similar issue to webp if we don't address this in a more generic manner. As mentioned in #20, the competing MRs 99 vs 102 should be resolved.