"cache" and "*"
The parser adds prefetchCache when either broad cache directive is present, so prefetch records are not left stale.
v138 · caching · headers
Prerender invalidation demo
Populate simulated speculation-rule prefetch and prerender entries, then clear them with Clear-Site-Data: "prefetchCache", "prerenderCache", "cache", or "*". The header builder shows the copied response header and the effective speculative cache actions.
Build Clear-Site-Data header
Select directives
Clear-Site-Data: "prerenderCache"
Cache state simulation
Prefetch records
Prerender records
Event timeline
Edge cases modelled
Referrer origin scope
Speculation records are matched by the origin that initiated them. A cross-origin target created by this page is cleared; a record initiated by another origin is left alone.
Active prerenders
prefetchCache skips prefetch records attached to an active prerender. Send prerenderCache too when the prerendered document can be stale.