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Post by account_disabled on Oct 26, 2023 5:48:28 GMT
Browsers can use the "ETag" header to check whether the cached copy of a resource is up to date. When a browser sends a request for a resource, it may append an "If-None-Match" header with the "ETag" header value, which is stored in the cache. If the "ETag" header matches the current version of the resource, the server may respond with a "304 Not Modified. Which means that the resource in the cache is current and there is no need to re-download it. "Vary" headline It is used to determine which headers should be taken phone number list into account when checking cache compliance. For example, if the "Vary: Accept-Encoding" header is set, it means that the cache should include different versions of the resource depending on the value of the "Accept-Encoding" header sent by the browser. Vary header is especially useful for caching dynamic content, which can have different variants depending on the request headers. cache Cache control and cleaning Sometimes it may be necessary to check and clear the cache to ensure that the content displayed is current and accurate. Here are the different methods to check the cache and clear it in browsers. Refreshing the page The easiest way to check the cache is to refresh the page in your browser.
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