Just to reduce confusion (hopefully): > or even this (which is how my old webcam software worked): > request - answer - answer - answer - request - request -

Just to reduce confusion (hopefully): > or even this (which is how my old webcam software worked): > request - answer - answer - answer - request - request - etc This is not HTTP pipelining, though it sort of looks similar. It's a neat hack, but the HTTP spec doesn't allow guessing what the request will be.