Say what Pages actually does with the cache headers - #6
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Measured after deploying: the CSP in _headers arrives on every response, the Cache-Control does not, because Pages fixes static assets at four hours. The version query on style.css and app.js is what actually invalidates them, so _headers now says that instead of carrying rules that do nothing.
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The
_headersfile I added carried per-pathCache-Controlrules. Measured after deploying: the CSP arrives on every response, the cache header does not, because Cloudflare Pages serves static assets at a fixedmax-age=14400.The version query on
style.cssandapp.jsis what actually invalidates them, andindex.htmlis served withmax-age=0, so a bumped query is picked up on the next visit._headersnow documents that rather than carrying rules that do nothing; the security headers and the CSP stay.