XMLHttpRequest.timeout
The XMLHttpRequest.timeout
property is an unsigned long
representing the number of milliseconds a request can take before automatically being terminated. The default value is 0, which means there is no timeout. Timeout shouldn't be used for synchronous XMLHttpRequests requests used in a document environment or it will throw an InvalidAccessError
exception. When a timeout happens, a timeout event is fired.
-
Note: You may not use a timeout for synchronous requests with an owning window.
- Using a timeout with an asynchronous request
In Internet Explorer, the timeout property may be set only after calling the open() method and before calling the send() method.
Example
JavaScript
Copy Code
var xhr = new XMLHttpRequest(); xhr.open('GET', '/server', true); xhr.timeout = 2000; // time in milliseconds xhr.onload = function () { // Request finished. Do processing here. }; xhr.ontimeout = function (e) { // XMLHttpRequest timed out. Do something here. }; xhr.send(null);
Specifications
Specification | Status | Comment |
---|---|---|
XMLHttpRequest | Living Standard | WHATWG living standard |
License
© 2016 Mozilla Contributors
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-us/docs/web/api/xmlhttprequest/timeout