Comment 9 for bug 1638610

First of all, agreed with bz that this is in need of heavy refactoring. Unfortunately there has been a lot of that, so I haven't gotten around to it yet. If we had more editors, maybe...

Having read through navigate and its various associated algorithms a few times now, I don't think anything there stops this, since the user is allowed to navigate elsewhere until the page navigated to actually starts arriving (at that point navigate starts blocking certain navigation attempts, though not all).

Now, we could make tweaks, but that's tricky. E.g., if the user clicks <a onclick=window.location='/x'>test</a> after dismissing the dialog, should that fail or work?