Per T108424, we should fix the bug in RevisionJumper that breaks certain links in Firefox.
I'm trying to make a link to a section (or subsecion) of an old version of an article. Clicking the link takes me to the old version of the article, but the section anchor seems to have no effect. The cursor always ends up at the top of the page. Example: https://en.wikipedia.org/w/index.php?title=User_talk:DVdm&oldid=655052178#Proper_length
It looks like this is due to Firefox never completing the page load for some reason.