It is a MIDI application that is only useful when delivered via the web. I don't have much choice there. So yes, it is a hard path. But then again, if I can get it to work then it will be a very neat little project. So for now I'll just stoically plod through and try to eliminate each of the little gotcha's one-by-one.

But the ease with which apparent guarantees are tossed around by browser documentation (with regards to time) only to see them solidly trashed in real life is depressing.