The XMLHttpRequest.status property returns the numerical status code of the response of the XMLHttpRequest. status will be an unsigned short
. Before the request is complete, the value of status
will be 0
. It is worth noting that browsers report a status of 0 in case of XMLHttpRequest errors too.
The status codes returned are the standard HTTP status codes. For example, status
200
denotes a successful request. If the server response doesn't explicitly specify a status code, XMLHttpRequest.status
will assume the default value of 200
.
Example
var xhr = new XMLHttpRequest(); console.log('UNSENT', xhr.status); xhr.open('GET', '/server', true); console.log('OPENED', xhr.status); xhr.onprogress = function () { console.log('LOADING', xhr.status); }; xhr.onload = function () { console.log('DONE', xhr.status); }; xhr.send(null); /** * Outputs the following: * * UNSENT 0 * OPENED 0 * LOADING 200 * DONE 200 */
Specifications
Specification | Status | Comment |
---|---|---|
XMLHttpRequest | Living Standard | WHATWG living standard |
Browser compatibility
Feature | Chrome | Edge | Firefox (Gecko) | Internet Explorer | Opera | Safari (WebKit) |
---|---|---|---|---|---|---|
Basic support | 1 | (Yes) | 1.0 (1.7 or earlier)[1] | 7[1] | (Yes) | 1.2 |
Feature | Android | Chrome for Android | Edge | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile |
---|---|---|---|---|---|---|---|
Basic support | ? | 1.0 | (Yes) | (Yes) | ? | ? | ? |
[1] Internet Explorer versions 5 and 6 lacked the XMLHttpRequest object, but provided a way to make AJAX requests using ActiveXObject
.
See also
- List of HTTP response codes
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