What is the purpose of ETags in web development?
ETags, or Entity Tags, are HTTP headers used for web cache validation and conditional requests.
How do ETags improve performance?
ETags help reduce bandwidth by allowing browsers to cache resources and only download them if they change.
Can you give an example of how to implement ETags?
Sure! You can set an ETag in your server response like this: ETag: "abc123"
. The browser will use this for future requests.
Are there any downsides to using ETags?
Yes, ETags can add overhead to server responses and may not work well with load balancers if not configured properly.
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