FWIW, the demo call stack isn't very accessible with a screen reader. In particular, it's not clear how the elision of portions of the name is supposed to work.

FWIW, the demo call stack isn't very accessible with a screen reader. In particular, it's not clear how the elision of portions of the name is supposed to work. From my perspective when using a screen reader, each entry in the call stack consists of an unlabeled button, a simple string like "nsGlobalWindowInner::Dump (…) at nsGlobalWindowInner.cpp:3370", followed by another unlabeled button. To be fair, I know that making a highly interactive UI like this accessible with a screen reader is a lot of work, and you probably haven't yet had a customer who needs it. (And it's unlikely that I will become a customer in the near future.)