What is an ETag and can you explain its working?

devquora
devquora

Posted On: Feb 22, 2018

 

An ETag is actually an identifier which is assigned by a web server to any of the specific version of a resource. It is done where the URL is found. The ETag instantly changes if the resource content over the URL changes. In this case, the client can ask to cache the resources along with its ETag.

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