Invalidating cache in asp net dating sites like live links

NET 2003 represents the most significant update to the product in many years! NET article which explains about the methods involved to cache web pages and arbitrary objects in the server memory. NET is an article in which author demonstartes about the method involved in caching the users controls with in a web form, which termed as fragment caching. NET code to find and handle the runtime errors occuring in ASP. Through this article the users could understand about...

invalidating cache in asp net-28

Fetching something over the network is both slow and expensive.

Large responses require many roundtrips between the client and server, which delays when they are available and when the browser can process them, and also incurs data costs for the visitor.

In the preceding example, the client automatically provides the ETag token in the "If-None-Match" HTTP request header.

The server checks the token against the current resource.

That’s the problem that validation tokens, as specified in the ETag header, are designed to solve.

The server generates and returns an arbitrary token, which is typically a hash or some other fingerprint of the contents of the file.

Check the platform documentation and confirm your settings.

When the server returns a response, it also emits a collection of HTTP headers, describing its content-type, length, caching directives, validation token, and more.

To prevent cookie replay attacks or - a very common use case - log out other sessions when a user changes their password. NET does not have a built-in way of doing this, but there's a simple solution.

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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.

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