The new `No-Vary-Search` header informs browsers that a query string such as `?product_id=7` signifies unique content for that URL based on the query parameter and should be cached individually. Conversely, a query string like `?utm_source=frontendmasters` does not contain unique content and should not be cached individually. (As explained by Harry Roberts)
Enhance Browser Caching Using No-Vary-Search
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