Gijs Kruitbosch a43aafe52b Bug 1676345 - honour extensions from URLs with query parameters for useless mimetypes to avoid taking the extension from bogus local data, r=mak
This restores extension discovery logic to using the URL for requests where
there's no filename in the Content-Disposition header information, and where
the mimetype gives no indication of the 'correct' extension.

This is a short-term workaround for the larger issue that we should not have
bad local information for these mimetypes - fixing that is bug 1659008, but
requires using the extension to get a better mimetype, which this patch will
also help with.

Differential Revision: https://phabricator.services.mozilla.com/D97824
2020-12-02 17:36:41 +00:00

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