Circuits view sometimes not displayed in Tor Browser, possibly related onion-grater exception and dropped restricted stream event
Since we released 5.15.1, several users have reported that the circuits button in Tor Browser's address bar is not always visible. This might be a coincidence or a mere duplicate of #19693 (closed), but:
- We've received several such reports since the release.
- We've shipped a bunch of changes to onion-grater in 5.15.1.
- In the debug logs I see onion-grater raising an exception, and dropping some "restricted stream event" related to Tor Browser.
Related WhisperBack reports:
I'll forward these reports to @anonym, who worked on this part of our codebase last.