Is it just me or is there something quirky with the rel="canonical" links for docdrop so that there isn't URL parity for the annotations on docdrop and the equivalent youtube videos. I thought it used to work, but when I visit the youtube version, there are no annotations on the page. I thought this used to work the way one would expect. What changed?

I'm noticing that in this particular case there are two rel-canonical links when one might expect only one:

<link rel="canonical" href="https://www.youtube.com/watch?v=XgMh6iuFbT4"><br /> <link rel="canonical" href="http://docdrop.org/video/XgMh6iuFbT4/">

Maybe the docdrop link should be a rel="alternate" instead?

cc: @dwhly