Funny enough, I went and put in `while (true) {}` and the right hand side did show an error about it running too long. But I clicked Save and was prompted to create an account (or "...I don't want to be awesome...") and I couldn't click the buttons. I open Activity Monitor and sure enough Chrome's Renderer is pegged at 100%. I killed the process but now whenever I open the /cs/new page (even in incognito amazingly) it pegs at 100%. I also had to kill the script in Firefox but when I refresh the pages it's okay. I guess while(true){} is always nasty.