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Httpsupgrades November 2024 updates - added non-normative examples and changed Https upgrade step #1

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Nov 26, 2024
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Httpsupgrades November 2024 updates - added non-normative examples and changed Https upgrade step #1

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a8514dc
Add custom port example
meacer Nov 21, 2024
89f01d1
Add redirect loop example
meacer Nov 25, 2024
0ff1261
Move upgrade step after HSTS
meacer Nov 26, 2024
9b8c6d0
Grammar nit
meacer Nov 26, 2024
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30 changes: 21 additions & 9 deletions fetch.bs
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Original file line number Diff line number Diff line change
Expand Up @@ -3410,13 +3410,25 @@ requests, in order to quickly initiate a fallback HTTP fetch.
request to <code>http://a.com</code> will be upgraded to <code>https://a.com</code>, but the fetch
will fail. A fallback request will be initiated to <code>http://a.com</code>.

<p id=example-https-upgrade-allowlist class=example><code>site.test</code> serves
<code>http://site.test</code> but refuses connections on <code>https://site.test</code>. Upon
first request and fallback to <code>http://site.test</code>, the user agent stores the hostname
in an allowlist with an expiration time of 7 days. In a future request, if <code>site.test</code>
is still in this allowlist, the user agent will not upgrade <code>http://site.test</code> to
<code>https://site.test</code>. The user agent will also set the new expiration time of the
allowlist entry for <code>site.test</code> to 7 days from now.
<p id=example-https-upgrade-allowlist class=example><code>a.com</code> serves
<code>http://a.com</code> but refuses connections on <code>https://a.com</code>. Upon
first request and fallback to <code>http://a.com</code>, the user agent stores the hostname
in an allowlist with an expiration time of 7 days. In a future request, if <code>a.com</code>
is still in this allowlist, the user agent will not upgrade <code>http://a.com</code> to
<code>https://a.com</code>. The user agent will also set the new expiration time of the
allowlist entry for <code>a.com</code> to 7 days from now.

<p id=example-https-upgrade-ports class=example><code>a.com</code> serves
<code>http://a.com:8080</code>. When a site is served from a non-default HTTP port, it's unlikely
that the corresponding HTTPS URL is served from the default port either. Therefore, user agent
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doesn't upgrade requests to <code>http://a.com:8080.</code>

<p id=example-https-upgrade-redirect-loop class=example><code>a.com</code> serves
<code>http://a.com</code> and <code>https://a.com</code>. The latter redirects to the former.
An eligible request to <code>http://a.com</code> will be upgraded to
<code>https://a.com</code> and will be redirected back to <code>http://a.com</code>.
The user agent will detect this as a redirect loop, treat it as a failed upgrade and initiate a
fallback navigation to <code>http://a.com</code>.



Expand Down Expand Up @@ -4609,8 +4621,6 @@ steps:

<li><p><a>Upgrade <var>request</var> to a potentially trustworthy URL, if appropriate</a>.

<li><p>Optionally, run <a>upgrade an HTTP request</a> algorithm on <var>request</var>.

<li><p><a>Upgrade a mixed content <var>request</var> to a potentially trustworthy URL, if appropriate</a>.

<li><p>If <a lt="block bad port">should <var>request</var> be blocked due to a bad port</a>,
Expand Down Expand Up @@ -4660,6 +4670,8 @@ steps:
in the fetch algorithm and potentially unwind logic on discovering the need to change
<var>request</var>'s <a for=request>current URL</a>'s <a for=url>scheme</a>.

<li><p>Optionally, run <a>upgrade an HTTP request</a> algorithm on <var>request</var>.

<li><p>If <var>recursive</var> is false, then run the remaining steps <a>in parallel</a>.

<li>
Expand Down