Response.useFinalURL - Web APIs 编辑

Obsolete

This feature is obsolete. Although it may still work in some browsers, its use is discouraged since it could be removed at any time. Try to avoid using it.

The useFinalURL property of the Response interface contains a boolean stating whether this is the final URL of the response.

This property applies only to ServiceWorkers. In other contexts it will return undefined.

Syntax

var isfinalURL = Response.useFinalURL;

Value

A Boolean indicating whether or not the URL is final rather than a redirect.

Example

Consider a script residing in page index.html:

fetch('/test').then((r) => console.log(r.url))

test.html is being controlled by the service worker sw.js:

onfetch = (e) => {
  e.respondWith(fetch('/page2').then((r) => {
    r.usefinalURL = true;
    return r;
  })
}

The output will be /page2 and not /test in index.html, since setting the usefinalURL means that the response's URL is not set to request's URL.

Browser compatibility

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See also

• ServiceWorker API
• HTTP access control (CORS)
• HTTP