Improve upload error message for animated WebP images

Question

Animated WebP images are not supported. The error message is misleading (test file):

Not a valid file type: please upload a bmp, gif, jpeg, png, or webp file.

Feature request: Improve upload error message for animated WebP images, e.g.:

Animated WebP images are not supported.

(Note that animated PNGs work fine, e.g. https://i.sstatic.net/EXLLfEZP.png)

It would probably be easier to change webp to non-animated webp in the original message. — President James K. Polk, Commented Jul 2 at 0:15
Or static webp to save a few bytes (I used to do some challenges in CodeGolf.SE) — Cave Johnson, Commented Jul 2 at 1:43
Well they currently just doesn't really check for such a thing, most likely - so this SO question might help. — Shadow Wizard, Commented Jul 2 at 7:17
PNGs can also be animated, whatever minigation is implemented it should be implemented for animated PNGs too — mousetail 'he-him', Commented Jul 2 at 13:28
@mousetail animated PNGs work fine eg i.sstatic.net/EXLLfEZP.png — Franck Dernoncourt, Commented Jul 2 at 21:43
Why not just support animated webp? That's sort of what they are for... — Johan Walles, Commented Aug 28 at 5:57
Requested support for animated WebP images here: meta.stackexchange.com/questions/402470/… — Johan Walles, Commented Aug 28 at 17:10
Just linking to yet another example (closed as a duplicate, which is valid) meta.stackexchange.com/questions/404845 — IsaacS, Commented yesterday

Shadow Wizard · Accepted Answer · 2024-07-05 08:04:54Z

2

Another suggestion which is more simple to implement and will also make it more clear, is change the existing message to this instead:

Not a valid file type: please upload a bmp, gif, jpeg, png, or a non-animated webp file.

answered Jul 5 at 8:04

Shadow Wizard

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