What kind of network error is Chrome encountering when 'Status = (failed)' and 'Type = undefined'

Question

Sometimes I randomly see network requests from Chrome failing with Status = \'(failed)\' (status code 0 from the request object in JavaScript) and the response type as \'und

Answer 1

This can occur when the size in Content-Length header is larger then the actual Content being submitted, chrome considers the request "failed" since it could not retrieve the entire document.