[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:  has-patch     |     Focuses:
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Comment (by azaozz):

 Replying to [comment:6 joyously]:
 > If the original WebP can be displayed, are the subsizes really needed?

 In some cases it will probably work but the image will not be post-
 processed and will not be displayed properly on the front-end. There will
 be no srcset and sizes attributes, the originally uploaded file will be
 used in all cases even when it is way too large and few MB in size.

 However when a specific image sub-size is needed, for example when a
 (cropped) sub-size is added by the theme or the image is used for a header
 background, site icon, etc. it will fail as that image will not be
 available.

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Ticket URL: <https://core.trac.wordpress.org/ticket/53475#comment:13>
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