My Stack Overflow Careers profile includes links to a couple of
my projects, and their websites contain markup like  <link
rel="shortcut icon" sizes="16x16 32x32" type="image/png"
Instead of displaying the favicons, though, SO Careers displays
a placeholder (a white box with a gray border). I think
everything here is valid HTML5, except for the inclusion of
shortcut in the rel attribute (which is necessary for IE)… am I
doing something wrong, or is SOC parsing my site incorrectly?
share|improve this question Any reason you can't include them in
an img element? –  Oded Nov 3 '12 at 16:42 @Oded: It’s a
favicon, why would I include it in an img? –  bdesham Nov 3 '12
at 17:51 Why do you expect a favicon to appear on a page? – 
Oded Nov 3 '12 at 20:03 Not sure it's a "bug", maybe they just
not covering all the corners. Good test case will be checking
your favicon here just change to your own URL and see what you
get. If it's the correct icon than you can ask the developers
here to fill the gap for your case. – 