Cache: matchAll() method

Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.

Note: This feature is available in Web Workers.

The matchAll() method of the Cache interface returns a Promise that resolves to an array of all matching responses in the Cache object.

Syntax

js
matchAll()
matchAll(request)
matchAll(request, options)

Parameters

request Optional

The Request for which you are attempting to find responses in the Cache. This can be a Request object or a URL. If this argument is omitted, you will get a copy of all responses in this cache.

options Optional

An options object allowing you to set specific control options for the matching performed. The available options are:

ignoreSearch

A boolean value that specifies whether the matching process should ignore the query string in the URL. If set to true, the ?value=bar part of https://example.com/?value=bar would be ignored when performing a match. It defaults to false.

ignoreMethod

A boolean value that, when set to true, prevents matching operations from validating the Request http method (normally only GET and HEAD are allowed.) It defaults to false.

ignoreVary

A boolean value that when set to true tells the matching operation not to perform VARY header matching — i.e., if the URL matches you will get a match regardless of the Response object having a VARY header or not. It defaults to false.

Return value

A Promise that resolves to an array of all matching responses in the Cache object.

Note: Cache.match() is basically identical to Cache.matchAll(), except that rather than resolving with an array of all matching responses, it resolves with the first matching response only (that is, response[0]).

Examples

The following example retrieves all responses in the v1 cache matching the URL /, even including potential query parameters. By using { ignoreSearch: true }, using matchAll would retrieve / as well as /?value=bar.

It then logs the number of matching responses.

js
caches
  .open("v1")
  .then((cache) => cache.matchAll("/", { ignoreSearch: true }))
  .then((responses) => {
    console.log(`Found ${responses.length} matching responses`);
  });

Specifications

See also