Since the recent update to the main/live USD swap stats page I've been having trouble with one of the scripts sporadically locking up and putting my whole browser (Firefox v34.0.5) into a "Not Responding" state until the script is killed or the tab is closed. I would ordinarily leave it open in a background tab but after a while everything freezes up for a moment then Firefox asks me if I want to halt/continue/debug "Script:
http://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js:2"
I'm sure I've also seen some oddities where the 'Total' column in the swap offers table doesn't match up with the graph, but I've yet to really catch that one in action to properly document it.