We have a question on Code Review, that when editing causes the browser to become unresponsive. And for me, it causes Firefox to say the script is unresponsive and asks if I wish to kill it:
Warning: Unresponsive script
A script on this page may be busy, or it may have stopped responding. You can stop the script now, open the script in the debugger, or let the script continue.
The source of the problem, diagnosed by another user, is due to using regex:
Steps to reproduce:
- Go this question.
- Click edit.