Find your favorite server in the list, look for the appropriate settings, and copy/confirm that your server is configured with the recommended settings.From a performance optimization perspective, the best request is a request that doesn't need to communicate with the server: a local copy of the response allows you to eliminate all network latency and avoid data charges for the data transfer.As a result, the ability to cache and reuse previously fetched resources is a critical aspect of optimizing for performance.The good news is that every browser ships with an implementation of an HTTP cache.As a web developer, how do you take advantage of efficient revalidation? The browser automatically detects if a validation token has been previously specified, it appends the validation token to an outgoing request, and it updates the cache timestamps as necessary based on the received response from the server.
The server checks the token against the current resource.
All you need to do is ensure that each server response provides the correct HTTP header directives to instruct the browser on when and for how long the browser can cache the response.
If you are using a Web View to fetch and display web content in your application, you might need to provide additional configuration flags to ensure that the HTTP cache is enabled, its size is set to a reasonable number to match your use case, and the cache is persisted.
The client doesn't need to know how the fingerprint is generated; it only needs to send it to the server on the next request.
If the fingerprint is still the same, then the resource hasn't changed and you can skip the download.