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This feature is non-standard and is not on a standards track. Do not use it on production sites facing the Web: it will not work for every user. There may also be large incompatibilities between implementations and the behavior may change in the future.

This property is a string that indicates whether or not a DOMRequest operation has finished running.

Note: This feature is available in Web Workers.


var state = request.readyState;

Where request is a DOMRequest object.

This is a read-only property.

Return value

The returned value is a JavaScript string whose value is "done" if the operation has completed or "pending" if it has not.


Not part of any current specification.

Browser compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari
Basic support ? 13.0 (13.0) ? ? ?
Available in workers ? 41.0 (41.0) ? ? ?
Feature Android Chrome for Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
Basic support ? ? 13.0 (13.0) ? ? ?
Available in workers ? ? 41.0 (41.0) ? ? ?

See also

Document Tags and Contributors

Contributors to this page: fscholz, chrisdavidmills, teoli, MHasan, kscarfone, Sheppy, tregagnon, markg
Last updated by: fscholz,