Wrong upload progress when network interrupts about xhr HOT 3 OPEN

which means the progress loaded/total will grow to 100% even if the network interrupts.

Two things here:

1. You're pointing to non-normative text that explains the events. There are no implementation requirements here.
2. All it says is that once error dispatched you won't see anymore progress events. It doesn't at all validate the behavior you are saying (but even if it did, see 1).

Unless there's an actual problem with the algorithms under send() this seems like an implementation bug to me. Did you file a bug against Firefox?

from xhr.

@annevk Thanks for your reply. I tried in firefox and got a different result.

During the upload, I press Alt and then File->WokrOffline

After i select WorkOffline, the progress still keeps growing. The difference from chrome is that in firefox it grows with the same speed as before the interruption, acting like the network never interrupts. (While in chrome the the speed becomes much larger after the interruption).
(Interruption happens at 1%)

I also tried Opera. The behaviour differs from chrome and firefox. I didn't find any pattern of its' behaviour ...
So I just show a snapshot. (Interruption happens at 0.1%)

I guess maybe different browsers have different ways to deal with the interruption in this issue. "This is not a bug, it's a feature"

from xhr.

I think it's normal that when it's interrupted it will continue to fill the outgoing buffer a bit as it might not immediately get a connection close. And we don't actually track which bytes have been successfully delivered.

But going all the way to 100% does seem surprising, but it seems not all implementations are doing that in which case I'd consider this an implementation bug.

There's certainly nothing in the specification that supports that kind of behavior.

from xhr.