Cache: delete() method

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since April 2018.

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 delete() method of the Cache interface finds the Cache entry whose key is the request, and if found, deletes the Cache entry and returns a Promise that resolves to true. If no Cache entry is found, it resolves to false.

Syntax

delete(request)
delete(request, options)

Parameters

request

The Request you are looking to delete. This can be a Request object or a URL.

options Optional

An object whose properties control how matching is done in the delete operation. 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 http://foo.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. In other words, if the URL matches you will get a match regardless of whether the Response object has a VARY header. It defaults to false.
cacheName: A string that represents a specific cache to search within. Note that this option is ignored by Cache.delete().

Return value

a Promise that resolves to true if the cache entry is deleted, or false otherwise.

Examples

caches
  .open("v1")
  .then((cache) => cache.delete("/images/image.png"))
  .then((response) => {
    someUIUpdateFunction();
  });

Specifications

Specification
Service Workers # cache-delete