170714 2017-04-10 21:48:48 -0700 HTTP cache does not honor a number of cache-control request directives 2022-05-19 15:26:55 -0700 1 1 1 Unclassified WebKit Page Loading Safari Technology Preview All All REOPENED InRadar P2 Normal --- 1 mnot webkit-unassigned beidson cdumez koivisto mike webkit-bug-importer oldest_to_newest 1296275 0 mnot 2017-04-10 21:48:48 -0700 Safari Tech Preview's HTTP cache does not honour a number of cache-control request directives: * If a request contains Cache-Control: max-age with a value other than "0", Safari TP will reuse a stored response, even when the stored response is older * If a request contains Cache-Control: max-age and the response contains an Age header that is greater than the requested value, Safari TP will reuse the cached response * If a request contains Cache-Control: min-fresh, Safari TP will not honour its value * If a request contains Cache-Control: no-store, Safari TP will still use a stored response * If a request contains Cache-Control: only-if-cached, Safari TP will not generate a 504 response if it is not stored. For tests, see: http://w3c-test.org/fetch/http-cache/cc-request.html Probably the most concerning issue here is the lack of support for Cache-Control: no-store. 1870435 1 gsnedders 2022-05-19 10:13:04 -0700 (In reply to Mark Nottingham from comment #0) > For tests, see: > http://w3c-test.org/fetch/http-cache/cc-request.html Now http://wpt.live/fetch/http-cache/cc-request.any.html 1870436 2 webkit-bug-importer 2022-05-19 10:13:13 -0700 <rdar://problem/93585414> 1870441 3 gsnedders 2022-05-19 10:17:49 -0700 -> into Radar, given cache behaviour of Safari is owned by CFNetwork, and not WebKit. 1870443 4 cdumez 2022-05-19 10:19:13 -0700 (In reply to Sam Sneddon [:gsnedders] from comment #3) > -> into Radar, given cache behaviour of Safari is owned by CFNetwork, and > not WebKit. That's not true. WebKit doesn't use CFNetwork for HTTP caching. 1870546 5 mnot 2022-05-19 15:26:55 -0700 In the meantime - we've relaxed the requirement for caches to honour these: https://httpwg.org/http-core/draft-ietf-httpbis-cache-latest.html#cache-request-directive (that will be published as an RFC any day now) See tests also at: https://cache-tests.fyi/#cc-request