In one particular case a user's session may have timed out before they made an Ajax call. Visit Microsoft Q&A to post new questions. (xhr, status, error) - This is a function, accepts three parameters; it runs when a request fails. The following protocols are currently recognized as local: Override the callback function name in a JSONP request. I got a bug report that I can't duplicate, but ajax-call timeout is the current best guess. A default can be set for any option with, A set of key/value pairs that map a given, By default, all requests are sent asynchronously (i.e. The scriptCharset allows the character set to be explicitly specified for requests that use a