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Query Strings

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Better Browser Caching with No-Vary-Search

By Chris Coyier on

The new No-Vary-Search header can be used to tell browsers that a query string like ?product_id=7 means the content on that URL is unique based on the query parameter, so cache pages like that individually. But also that a query string like ?utm_source=frontendmasters does not have unique content, so don’t cache it individually. (As explained […]

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