Zulip's logic for garbage-collecting data structures before reloading
was a fix for a Chrome memory leak that lasted across reloads a few
years ago. That memory leak is probably now fixed, and thus logic is
causing lots of JavaScript tracebacks that are probably not useful.
So, let's try removing this cleanup logic (everything but the
still-useful deletion of the event queue).
There are no modern browsers that do not have built in JSON parsing
abilities. We do not need $.parseJSON as it now just serves as a call
to JSON.parse.
The channel module now keeps track pending ajax requests and has an
abort_all function to angle all pending requests.
(imported from commit 4e78ab24d2295bd67de5633e3a200dfa489825b1)
We've seen in our error logs browser clients that were constantly
retrying requests to our server after the user logged out in one tab
but didn't close another.
(imported from commit 68dd8d9e618083bc116ae3a96dbcc78fa9301bba)
Tim Abbott
Rafid Aslam
lonerz
Brock Whittaker
Tim Abbott
Steve Howell
Tim Abbott
Jason Michalski