[wp-trac] [WordPress Trac] #53475: No error shown on uploading a WebP image when the server doesn't support editing it

[WordPress Trac]

#53475: No error shown on uploading a WebP image when the server doesn't support
editing it
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 Reporter:  azaozz        |       Owner:  (none)
     Type:  defect (bug)  |      Status:  new
 Priority:  normal        |   Milestone:  5.8
Component:  Media         |     Version:  trunk
 Severity:  normal        |  Resolution:
 Keywords:  needs-patch   |     Focuses:
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Comment (by desrosj):

 Replying to [comment:3 joyously]:
 > Why is the expected behavior an error? Would it be better to fall back
 to JPG?
 Maybe error is the wrong term here.

 I think the goal is to let the user know that sub-sizes could not be
 created. In my opinion, I consider that more of a warning because the
 upload will succeed, but the user should be made aware that all of the
 expected steps could not be taken because the server lacked the needed
 support.

 I don't think that there's really any way to fallback to another format
 because ImageMagick/GD won't be able to read the WebP format. The notice
 for HEIC format is "This image cannot be displayed in a web browser. For
 best results convert it to JPEG before uploading." Personally, I see that
 as a similar scenario. The only difference is that there's no way to add
 support for HEIC currently. WebP support can be added.

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Ticket URL: <https://core.trac.wordpress.org/ticket/53475#comment:4>
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