This happens every time I strip a changeset from a repository.
I've been having this issue as well, about 50% of the time.
Please open a support request at firstname.lastname@example.org for assistance with this.
i don't observe this hanging chrome, but it certainly goes into a refresh loop (chrome "Version 28.0.1500.95 m", windows 7). not a blocker since i can just close the tab and come back later, but clearly doesn't seem to work as intended.
Confirm, it still hangs.
I've managed to reproduce this error and I have added this to our backlog. We'll try to have a fix out soon.
Issue #8058 was marked as a duplicate of this issue.
The strip changeset page has now been fixed. Please let us know if you still have issues.