[bransonf]

This SO thread [0] on the subject is interesting as well. I suspect this really has no harmful consequences, most browsers have a max iframe depth, although I don’t know how it varies.

[0] https://stackoverflow.com/questions/14223628/why-does-a-self...

[tylerhou]

I can “crash” a tab by running an infinite JS loop, or sending a bunch of data. Crashing doesn’t seem like a big deal.

[olliej]

It’s much less of a problem now that all browsers are running each tab in a separate process. It used to be so much worse.

[CodesInChaos]

Firefox manages to produce whole browser lag and freezes pretty often. And while it uses multiple processes, it's not using one per tab or origin.