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Define Sec-Purpose: Prefetch #84

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noamr opened this issue Nov 30, 2022 · 0 comments · Fixed by whatwg/fetch#1576
Closed

Define Sec-Purpose: Prefetch #84

noamr opened this issue Nov 30, 2022 · 0 comments · Fixed by whatwg/fetch#1576

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@noamr
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noamr commented Nov 30, 2022 •
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See whatwg/html#8111

Sec-Purpose: Prefetch is sent when the document fetches a <link rel=prefetch> resource.
It allows servers to do the following:

  • opt-out from prefetching, e.g. by sending a 503 response with Cache-Control: no-store
  • Some pages that rely on requests for analytics and for information such as "last visited". This allows them to not count the prefetch as an actual visit to the site.
@noamr noamr mentioned this issue Nov 30, 2022
Merged
3 tasks
noamr added a commit to noamr/webappsec-fetch-metadata that referenced this issue Dec 19, 2022
@noamr
Define the Sec-Purpose header
47a1f2a 
This hopefully replaces `x-moz: Prefetch`
and `Purpose: Prefetch` with something
agreed.

It applies both to [link prefetch](https://html.spec.whatwg.org/multipage/links.html#link-type-prefetch)
and to [speculation rules prefetch](https://wicg.github.io/nav-speculation/prefetch.html#prefetch),
though the latter may require additional parameters.

See whatwg/html#8111
Closes w3c#84
@noamr noamr mentioned this issue Dec 19, 2022
Closed
noamr added a commit to noamr/fetch that referenced this issue Dec 19, 2022
@noamr
Send Sec-Purpose: prefetch for prefetch requests
ef2d177 
The purpose headers allows servers to discern between regular requests
and "resource hints" - requests that are only meant to populate
caches.

This replaces the existing `Purpose` and `x-moz: prefetch` headers.

Closes w3c/webappsec-fetch-metadata#84
Part of whatwg/html#8111
noamr added a commit to noamr/fetch that referenced this issue Dec 19, 2022
@noamr
Send Sec-Purpose: prefetch for prefetch requests
2d9e17b 
The purpose headers allows servers to discern between regular requests
and "resource hints" - requests that are only meant to populate
caches.

This replaces the existing `Purpose` and `x-moz: prefetch` headers.

Closes w3c/webappsec-fetch-metadata#84
Part of whatwg/html#8111
@noamr noamr mentioned this issue Dec 19, 2022
Merged
4 tasks
noamr added a commit to noamr/fetch that referenced this issue Jan 4, 2023
@noamr
Send Sec-Purpose: prefetch for prefetch requests
2855355 
The purpose headers allows servers to discern between regular requests
and "resource hints" - requests that are only meant to populate
caches.

This replaces the existing `Purpose` and `x-moz: prefetch` headers.

Closes w3c/webappsec-fetch-metadata#84
Part of whatwg/html#8111
noamr added a commit to noamr/fetch that referenced this issue Jan 11, 2023
@noamr
Send Sec-Purpose: prefetch for prefetch requests
e1803cc 
The purpose headers allows servers to discern between regular requests
and "resource hints" - requests that are only meant to populate
caches.

This replaces the existing `Purpose` and `x-moz: prefetch` headers.

Closes w3c/webappsec-fetch-metadata#84
Part of whatwg/html#8111
annevk added a commit to whatwg/fetch that referenced this issue Jan 17, 2023
@noamr @annevk
Define Sec-Purpose: prefetch header
c68b8e3 
This replaces the existing `Purpose: prefetch` and `x-moz: prefetch` headers.

Tests: web-platform-tests/wpt#35707.

Part of whatwg/html#8111.

Closes w3c/webappsec-fetch-metadata#84 and w3c/resource-hints#74.

Co-authored-by: Anne van Kesteren <annevk@annevk.nl>
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