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Partition Blob URL fetches by Storage Key #1783

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Partition Blob URL fetches by Storage Key #1783

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42a4f90
Partition Blob URL fetches by Storage Key
recvfrom Oct 25, 2024
2d4567d
Fix formatting per the style guide
recvfrom Oct 25, 2024
e7689d6
Fix build and formatting
recvfrom Oct 25, 2024
f4f62bf
Add name to Acknowledgements section
recvfrom Oct 25, 2024
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50 changes: 50 additions & 0 deletions fetch.bs
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Original file line number Diff line number Diff line change
Expand Up @@ -3133,6 +3133,32 @@ or an <a>implementation-defined</a> value.
</div>


<h3 id=storage-keys-for-requests>Storage keys for requests</h3>

<p class=note>Requests made to Blob URLs (other than those corresponding to navigations) are
prevented from succeeding if the <a spec=storage>storage key</a> of the
<a>environment settings object</a> making the request is different than the
<a spec=storage>storage key</a> of the <a>environment settings object</a> corresponding to where
the Blob URL was created.

<div algorithm>
<p>To <dfn for=request>determine the storage key</dfn>, given a <a for=/>request</a>
<var>request</var>:

<ol>
<li><p>If <var>request</var>'s <a for=request>reserved client</a> is non-null, then return the
result of running <a for=/>obtain a storage key for non-storage purposes</a> given
<var>request</var>'s <a for=request>reserved client</a>.

<li><p>If <var>request</var>'s <a for=request>client</a> is non-null, then return the result of
running <a for=/>obtain a storage key for non-storage purposes</a> given <var>request</var>'s
<a for=request>client</a>.

<li><p>Return null.
</ol>
</div>


<h3 id=http-cache-partitions>HTTP cache partitions</h3>

<div algorithm>
Expand Down Expand Up @@ -4978,6 +5004,29 @@ steps:
<p class=note>The `<code>GET</code>` <a for=/>method</a> restriction serves no useful purpose
other than being interoperable.

<li>
<p>Let <var>blobStorageKey</var> be the result of running
<a>obtain a storage key for non-storage purposes</a> with <var>blobURLEntry</var>'s
<a>environment settings object</a>.

<li>
<p>Let <var>requestStorageKey</var> be the result of
<a for=request>determining the storage key</a> given <var>request</var>.

<li>
<p>If all of the following conditions are true:

<ul class=brief>
<li><p><var>request</var>'s <a for=request>mode</a> is not "<code>navigate</code>"

<li><p><var>requestStorageKey</var> is non-null

<li><p><var>requestStorageKey</var> does not <a for="storage key">equal</a>
<var>blobStorageKey</var>
</ul>

<p>then return a <a>network error</a>.

<li><p>Let <var>blob</var> be <var>blobURLEntry</var>'s <a for="blob URL entry">object</a>.

<li><p>Let <var>response</var> be a new <a for=/>response</a>.
Expand Down Expand Up @@ -9042,6 +9091,7 @@ Alexey Proskuryakov,
Andreas Kling,
Andrés Gutiérrez,
Andrew Sutherland,
Andrew Williams,<!-- recvfrom; GitHub -->
Ángel González,
Anssi Kostiainen,
Arkadiusz Michalski,
Expand Down