https://bugzilla.wikimedia.org/show_bug.cgi?id=30113

--- Comment #18 from Daniel Friesen <mediawiki-b...@nadir-seen-fire.com> 
2011-07-31 01:25:03 UTC ---
(In reply to comment #17)
> So, the problem here is that facebook can't find a logo? What are 'all other
> devices', why is this mediawiki's fault rather than the other site, and why 
> are
> you so terrible at making a lucid report?

We use a background-image for the logo instead of an <img> so Facebook can't
find it when it scans the pages for images to use when sharing the article.

The various points here:
- <img> functions differently than a background-image:
-- background-image properly clips logos that are too large
-- We have existing wiki that are relying on the fact that the logo is a
background-image and using site css to change the logo in various special cases
like per-namespace
- It's possible to fix this in FB using OpenGraph, however og:image overrides
the image list so including the logo there will break cases where FB is already
finding good images, I'm also not sure people would like the idea of something
nearly FB-specific being put into core
- Another suggestion is a redundant <img with display:none to hide it from
everything else. It's a bit of a messy hack, waiting for other comments and
reviews of that.

As for 'all other devices' jidanni is pretty much talking only about css-less
text based browsers... Normal browsers handle it fine, mobile browsers handle
it fine, screen readers can't display images, a good portion of the text
browsers I know of don't display images anyways... I only remotely know of one
text browser that shows images. I suppose the only category of people here
affected are people with bad eyesight that specifically choose to use a text
based browser that still displays images.

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