Harry Roberts on Mythryl: “An important update courtesy of @tunetheweb.com!…”

An important update courtesy of @tunetheweb.com! csswizardry.com/2026/05/bett...

I’ve been working with a client who runs a lot of social media and ad campaigns, so we’ve been deploying the experimental `No-Vary-Search HTTP` header. It’s amazing to see it actually working! Read all about it here: csswizardry.com/2026/05/bett...

csswizardry.comBetter Browser Caching with No-Vary-Search – CSS WizardryNo-Vary-Search lets HTTP caches ignore irrelevant query parameters such as UTM tags, while still keeping meaningful ones like product variants in the cache key.

11/5/26, 3:25 pm3 reposts10 likes

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