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Editorial: Move No-Vary-Search to IETF HTTPbis #338

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Editorial: Move No-Vary-Search to IETF HTTPbis #338

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333b002
Editorial: Move No-Vary-Search to IETF HTTPbis
jeremyroman Sep 27, 2024
a398c8d
Remove previous venue note
jeremyroman Sep 27, 2024
b09b653
update references to draft-ietf-httpbis-no-vary-search
jeremyroman Sep 27, 2024
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4 changes: 1 addition & 3 deletions no-vary-search.bs
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Expand Up @@ -45,9 +45,7 @@ spec: RFC8941; urlPrefix: https://www.rfc-editor.org/rfc/rfc8941.html

<h2 id="status-and-venue">Status and venue note</h2>

This document is being written as a web-style specification in the WICG for now, because that's the tooling and venue the author is familiar with. Its purpose is to nail down some details of the processing model in order to make writing and testing prototypes easier.

In the longer term, we envision this header being specified in a HTTPWG RFC, alongside whatever portion of the processing model can be shared among its various consumers. (That is, between both web platform specifications such as [[FETCH]], and HTTP specifications such as future modifications to [[RFC9111]].) It's just incubating in WICG for now.
Work on this document has moved to the IETF HTTP working group. The <a href="https://httpwg.org/http-extensions/draft-ietf-httpbis-no-vary-search.html">latest draft</a> and <a href="https://github.com/httpwg/http-extensions/labels/no-vary-search">issue tracker</a> can be found there.

<h2 id="header-definition">HTTP header field definition</h2>
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I think we should gut this spec entirely, maybe replacing it with a (client-side) redirect.


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4 changes: 4 additions & 0 deletions no-vary-search.md
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@@ -1,5 +1,9 @@
# The `No-Vary-Search` HTTP response header

> [!IMPORTANT]
> Work on this feature has moved to the IETF HTTP working group.
> The [latest draft](https://httpwg.org/http-extensions/draft-ietf-httpbis-no-vary-search.html) and [issue tracker](https://github.com/httpwg/http-extensions/labels/no-vary-search) can be found there.

Caching is useful for making web pages load faster, and thus creating better user experiences. Prominent caches on the web platform include the HTTP cache, as well as the subjects of this repository, the prefetch and prerender caches.

One of the most important cache keys for web resources is the resource's URL. However, sometimes multiple URLs can represent the same resource. This leads to caches not always being as helpful as they could be: if the browser has the resource cached under one URL, but the resource is then requested under another, the cached version will be ignored.
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12 changes: 6 additions & 6 deletions prefetch.bs
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Expand Up @@ -128,11 +128,11 @@ spec: nav-speculation; urlPrefix: prerendering.html
text: getting the supported loading modes; url: get-the-supported-loading-modes
text: uncredentialed-prefetch; for: Supports-Loading-Mode; url: supports-loading-mode-uncredentialed-prefetch
text: prerendering traversable; url: prerendering-traversable
spec: nav-speculation; urlPrefix: no-vary-search.html
spec: no-vary-search; urlPrefix: https://httpwg.org/http-extensions/draft-ietf-httpbis-no-vary-search.html
type: dfn
text: URL search variance; url: url-search-variance
text: obtain a URL search variance; url: obtain-a-url-search-variance
text: equivalent modulo search variance; url: equivalent-modulo-search-variance
text: URL search variance; url: name-data-model
text: obtain a URL search variance; url: name-obtain-a-url-search-varianc
text: equivalent modulo search variance; url: name-comparing
spec: resource-timing; urlPrefix: https://w3c.github.io/resource-timing/
type: dfn; for: PerformanceResourceTiming; text: delivery type; url: dfn-delivery-type
</pre>
Expand Down Expand Up @@ -785,10 +785,10 @@ The following parameters are defined for the "`prefetch`" token:

See <a href="speculation-rules.html#security-considerations">Security considerations (Speculation Rules)</a>.

For the integration of this spec with No-Vary-Search, see <a href="no-vary-search.html#security-considerations">No-Vary-Search Security considerations</a>.
For the integration of this spec with No-Vary-Search, see <a href="https://httpwg.org/http-extensions/draft-ietf-httpbis-no-vary-search.html#name-security-considerations">No-Vary-Search Security considerations</a>.

<h2 id="privacy-considerations">Privacy considerations</h2>

See <a href="speculation-rules.html#privacy-considerations">Privacy considerations (Speculation Rules)</a>.

For the integration of this spec with No-Vary-Search, see <a href="no-vary-search.html#privacy-considerations">No-Vary-Search Privacy considerations</a>.
For the integration of this spec with No-Vary-Search, see <a href="https://httpwg.org/http-extensions/draft-ietf-httpbis-no-vary-search.html#name-privacy-considerations">No-Vary-Search Privacy considerations</a>.
14 changes: 7 additions & 7 deletions prerendering.bs
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Expand Up @@ -79,12 +79,12 @@ spec: picture-in-picture; urlPrefix: https://w3c.github.io/picture-in-picture/
spec: mediacapture-main; urlPrefix: https://w3c.github.io/mediacapture-main/
type: dfn
text: device change notification steps; url: dfn-device-change-notification-steps
spec: nav-speculation; urlPrefix: no-vary-search.html
spec: no-vary-search; urlPrefix: https://httpwg.org/http-extensions/draft-ietf-httpbis-no-vary-search.html
type: dfn
text: URL search variance; url: url-search-variance
text: default URL search variance; url: default-url-search-variance
text: obtain a URL search variance; url: obtain-a-url-search-variance
text: equivalent modulo search variance; url: equivalent-modulo-search-variance
text: URL search variance; url: name-data-model
text: default URL search variance; url: iref-default-url-search-variance
text: obtain a URL search variance; url: name-obtain-a-url-search-varianc
text: equivalent modulo search variance; url: name-comparing
spec: nav-speculation; urlPrefix: prefetch.html
type: dfn
text: supports prefetch; url: supports-prefetch
Expand Down Expand Up @@ -1018,14 +1018,14 @@ More complicated cases:

See <a href="speculation-rules.html#security-considerations">Security considerations (Speculation Rules)</a>.

For the integration of this spec with No-Vary-Search, see <a href="no-vary-search.html#security-considerations">No-Vary-Search Security considerations</a>.
For the integration of this spec with No-Vary-Search, see <a href="https://httpwg.org/http-extensions/draft-ietf-httpbis-no-vary-search.html#name-security-considerations">No-Vary-Search Security considerations</a>.

<p class="issue">Add security considerations that are specific to prerendering. See <a href="https://github.com/WICG/nav-speculation/issues/319">issue #319</a>.</p>

<h2 id="privacy-considerations">Privacy considerations</h2>

See <a href="speculation-rules.html#privacy-considerations">Privacy considerations (Speculation Rules)</a>.

For the integration of this spec with No-Vary-Search, see <a href="no-vary-search.html#privacy-considerations">No-Vary-Search Privacy considerations</a>.
For the integration of this spec with No-Vary-Search, see <a href="https://httpwg.org/http-extensions/draft-ietf-httpbis-no-vary-search.html#name-privacy-considerations">No-Vary-Search Privacy considerations</a>.

<p class="issue">Add privacy considerations that are specific to prerendering. See <a href="https://github.com/WICG/nav-speculation/issues/319">issue #319</a>.</p>
12 changes: 6 additions & 6 deletions speculation-rules.bs
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Expand Up @@ -85,12 +85,12 @@ spec: nav-speculation; urlPrefix: prerendering.html
text: start referrer-initiated prerendering; url: start-referrer-initiated-prerendering
text: prerendering traversable; url: prerendering-traversable
text: activate; for: prerendering traversable; url: prerendering-traversable-activate
spec: nav-speculation; urlPrefix: no-vary-search.html
spec: no-vary-search; urlPrefix: https://httpwg.org/http-extensions/draft-ietf-httpbis-no-vary-search.html
type: dfn
text: URL search variance; url: url-search-variance
text: default URL search variance; url: default-url-search-variance
text: obtain a URL search variance hint; url: obtain-a-url-search-variance-hint
text: equivalent modulo search variance; url: equivalent-modulo-search-variance
text: URL search variance; url: name-data-model
text: default URL search variance; url: iref-default-url-search-variance
text: obtain a URL search variance; url: name-obtain-a-url-search-varianc
text: equivalent modulo search variance; url: name-comparing
</pre>
<style>
/* domintro from https://resources.whatwg.org/standard.css */
Expand Down Expand Up @@ -422,7 +422,7 @@ add the following step
1. Let |noVarySearchHint| be the [=default URL search variance=].
1. If |input|["`expects_no_vary_search`"] [=map/exists=]:
1. If |input|["`expects_no_vary_search`"] is not a [=string=], then return null.
1. Set |noVarySearchHint| to the result of [=obtaining a URL search variance hint=] given |input|["`expects_no_vary_search`"].
1. Set |noVarySearchHint| to the result of [=obtaining a URL search variance=] given |input|["`expects_no_vary_search`"].
1. Return a [=speculation rule=] with
: [=speculation rule/URLs=]
:: |urls|
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