20.07.2010, в 14:37, Jonas Sicking написал(а): > However I haven't been able to find a clear definition of what counts > as a "network error". Does this include successful HTTP requests that > return 4xx or 5xx status codes? Or just errors in the lower level of > the stack, such as aborted TCP connections?
FWIW, I've been always assuming the latter. Blocking 4xx and 5xx responses would mean having a rather unexpected difference between same origin and cross origin XMLHttpRequest (the former lets JS code see such responses). - WBR, Alexey Proskuryakov
