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.
js
const xhr = new XMLHttpRequest();
xhr.open("GET", "/server", true);
xhr.timeout = 2000; // time in milliseconds
xhr.onload = () => {
// Request finished. Do processing here.
};
xhr.ontimeout = (e) => {
// XMLHttpRequest timed out. Do something here.
};
xhr.send(null);
| Specification |
|---|
| XMLHttpRequest Standard # the-timeout-attribute |
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
timeout |
29 | 12 | 12 | 8 | 1712–16 | 7 | 4.4 | 29 | 14 | 1812–16 | 7 | 2.0 |
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https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest/timeout