Clicking on embedded links seems to cause FPI mismatch
Starting with Tor Browser 8 if one clicks on a link to, say, an image on a different domain, one sees first Torbutton log output about a request to the old domain in the URL bar and then to the new one. For instance if one clicks on the image link on
the result is something like
[12-04 09:21:38] Torbutton INFO: tor SOCKS: https://www.w3schools.com/html/img_logo.gif via torproject.org:b1e105e74a9fc3a64a2ce2ac582c0640 [12-04 09:21:38] Torbutton INFO: tor SOCKS: https://www.w3schools.com/html/img_logo.gif via w3schools.com:81afd299054bcc8fc31c931087161bfe GET https://www.w3schools.com/html/img_logo.gif [HTTP/2.0 200 OK 1787ms]
This got noted on our blog: https://blog.torproject.org/comment/278684#comment-278684 (and similar comments on the 8.5a5 blog post).