As many comments in this thread have mentioned, the crash seems to happen when when logged in; youtube and other services seem to work when don't send the session cookie. This suggests something very fundamental related to user account/sessions is failing...

Did Maria Christensen make a mistake when adding "return true;"?

(This is a joke referencing Tom Scott's 2014 parable[1] about the danger of designing a system with a single point of failure. Tom's tells the fictional tale of a high level employee at Google adding "return true;" to the global "handleLogin()" function.)

[1] https://www.youtube.com/watch?v=y4GB_NDU43Q (you might need to open this link in a private window...)