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Caching HTTP Headers, Cache-Control: max-age

Caching speeds up repeated page views and saves a lot of traffic by preventing downloading of unchanged content every page view. We can use Cache-Control: max-age=… to inform browser that the component...

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Caching HTTP Headers, Last-Modified and ETag

What if we cannot predict lifetime of page content? If we have a page with info that changes unpredictably we still can use browser cache to avoid unneeded traffic. Using validation mechanism browser...

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