https://bugzilla.wikimedia.org/show_bug.cgi?id=27544
Summary: SVG images that are invalid XML no longer render
Product: MediaWiki
Version: wikimedia-deployment
Platform: All
OS/Version: All
Status: NEW
Severity: major
Priority: Normal
Component: Images and files
AssignedTo: [email protected]
ReportedBy: [email protected]
CC: [email protected], [email protected]
As of r75968, SVG images that are invalid XML no longer render. Previously
those images where allowed by MediaWiki and it appears that rsvg happily
accepts them.
I agree that we should not accept SVG images which are not valid XML, however I
am not convinced that breaking images which used to render fine is a good
approach.
People in #wikimedia-commons suggest that a few hundreds of SVGs on Commons are
broken. My analysis on a random set suggests that less than 0.1% of the SVG
images in use on Wikimedia is affected. (Checked a random set of 1000 images,
found none)
The question is whether we should fall back to the old behavior if the file
does not pass the new file checks, or whether we should just refuse rendering
them.
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