Pictures don't load in blog posts

https://blog.torproject.org/blog/lifecycle-of-a-new-relay is supposed to have a picture:

<p><a href="https://extra.torproject.org/blog/2013-09-11-lifecycle-of-a-new-relay/lifecycle.png" rel="nofollow"><br /></a></p>

But it doesn't show up on the page.

See also https://blog.torproject.org/blog/what-tor-supporter-looks-edward-snowden

Is it being blocked by some sort of content security policy? Or is it something else?