FYI - for any Opera 12 aficionados ..

---------- Forwarded message ---------- From: Bartosz Dziewoński matma.rex@gmail.com Date: Mon, Feb 16, 2015 at 8:35 AM Subject: [Wikitech-l] MediaWiki will avoid serving SVG images to Opera 12 To: Wikimedia developers wikitech-l@lists.wikimedia.org

Just a quick note that I have submitted a patch < https://gerrit.wikimedia.org/r/190819%3E that will make MediaWiki avoid serving SVG images to Opera 12 (the old, Presto-based one) when a PNG fallback is available.

We support it as a Grade A browser, which means that we should do our best to provide the best possible experience. In my opinion, the best possible experience involves not giving it any SVGs.

Opera 12 has issues when rendering SVG background-images together with border-radius or background-size rules (see task https://phabricator. wikimedia.org/T87504 for details and examples), and both of these are becoming increasingly common in our codebase. One common complaint was the new MediaWiki UI checkboxes, where the check icon would sometimes not appear for Opera users.