This is a brilliant tool for those of us who test JavaScript. A bit of a hack, but it seems to work. It's also a reason why browsers should allow some sort of

This is a brilliant tool for those of us who test JavaScript. A bit of a hack, but it seems to work. It's also a reason why browsers should allow some sort of tracing API for JavaScript. I know V8 and Firefox do not expose the interface because they couldn't think of a decent enough use case to justify exposing the surface area of this code. This is the use case.