diff --git a/source b/source
index 81cbb67d3b0..1c268adb174 100644
--- a/source
+++ b/source
@@ -4235,9 +4235,12 @@ a.setAttribute('href', 'https://example.com/'); // change the content attribute
     <p>The following terms are defined in <cite>Storage</cite>: <ref spec=STORAGE></p>
 
     <ul class="brief">
+     <li><dfn data-x-href="https://storage.spec.whatwg.org/#compute-a-storage-key-for-an-environment">compute a storage key for an environment</dfn></li>
+     <li><dfn data-x-href="https://storage.spec.whatwg.org/#compute-a-storage-key-for-an-environment-settings-object">compute a storage key for an environment settings object</dfn></li>
      <li><dfn data-x-href="https://storage.spec.whatwg.org/#obtain-a-local-storage-bottle-map">obtain a local storage bottle map</dfn></li>
      <li><dfn data-x-href="https://storage.spec.whatwg.org/#obtain-a-session-storage-bottle-map">obtain a session storage bottle map</dfn></li>
      <li><dfn data-x-href="https://storage.spec.whatwg.org/#obtain-a-storage-key-for-non-storage-purposes">obtain a storage key for non-storage purposes</dfn></li>
+     <li><dfn data-x-href="https://storage.spec.whatwg.org/#storage-key">storage key</dfn></li>
      <li><dfn data-x-href="https://storage.spec.whatwg.org/#storage-key-equal">storage key equal</dfn></li>
      <li><dfn data-x-href="https://storage.spec.whatwg.org/#storage-proxy-map">storage proxy map</dfn></li>
      <li><dfn data-x-href="https://storage.spec.whatwg.org/#legacy-clone-a-browsing-session-storage-shed">legacy-clone a browsing session storage shed</dfn></li>
@@ -89013,6 +89016,8 @@ interface <dfn interface>Location</dfn> { // but see also <a href="#the-location
 
        <li><p>Let <var>topLevelOrigin</var> be null.</p></li>
 
+       <li><p>Let <var>parentStorageKey</var> be null.</p></li>
+
        <li>
         <p>If <var>browsingContext</var> is not a <span>top-level browsing context</span>, then:</p>
 
@@ -89021,11 +89026,15 @@ interface <dfn interface>Location</dfn> { // but see also <a href="#the-location
          data-x="bc-container">container</span>'s <span>relevant settings object</span>.</p></li>
 
          <li><p>Set <var>topLevelCreationURL</var> to <var>parentEnvironment</var>'s <span>top-level
-         creation URL</span> and <var>topLevelOrigin</var> to <var>parentEnvironment</var>'s
-         <span>top-level origin</span>.</p></li>
+         creation URL</span>, <var>topLevelOrigin</var> to <var>parentEnvironment</var>'s
+         <span>top-level origin</span>, and <var>parentStorageKey</var> to <var>parentEnvironment</var>'s
+         <span>storage key</span>.</p></li>
         </ol>
        </li>
 
+       <li><p>Let <var>reservedStorageKey</var> be the result of running <span>compute a storage key for an
+       environment</span> given <var>currentURL</var> and <var>parentStorageKey</var>.
+
        <li>
         <p>Set <var>request</var>'s <span data-x="concept-request-reserved-client">reserved
         client</span> to a new <span>environment</span> whose <span
@@ -89033,8 +89042,9 @@ interface <dfn interface>Location</dfn> { // but see also <a href="#the-location
         data-x="concept-environment-target-browsing-context">target browsing context</span> is
         <var>browsingContext</var>, <span data-x="concept-environment-creation-url">creation
         URL</span> is <var>currentURL</var>, <span>top-level creation URL</span> is
-        <var>topLevelCreationURL</var>, and <span>top-level origin</span> is
-        <var>topLevelOrigin</var>.</p>
+        <var>topLevelCreationURL</var>, <span>top-level origin</span> is
+        <var>topLevelOrigin</var>, and <span data-x="concept-environment-storage-key">storage key</span>
+        is <var>reservedStorageKey</var>.</p>
 
         <p class="note">The created environment's <span
         data-x="concept-environment-active-service-worker">active service worker</span> is set in
@@ -91986,6 +91996,12 @@ interface <dfn interface>BeforeUnloadEvent</dfn> : <span>Event</span> {
     the latter.</p>
    </dd>
 
+   <dt>A <dfn data-x="concept-environment-storage-key" export
+   for="environment">storage key</dfn></dt>
+   <dd>
+    <p>A <span data-x="storage key">storage key</span>.
+   </dd>
+
    <dt>A <dfn id="concept-environment-top-level-creation-url" export
    for="environment">top-level creation URL</dfn></dt>
    <dd><p>Null or a <span>URL</span> that represents the <span
@@ -104139,9 +104155,15 @@ interface <dfn interface>SharedWorkerGlobalScope</dfn> : <span>WorkerGlobalScope
    unique opaque string, <span data-x="concept-environment-creation-url">creation URL</span> to
    <var>worker global scope</var>'s <span>url</span>, <span>top-level creation URL</span> to null,
    <span data-x="concept-environment-target-browsing-context">target browsing context</span> to
-   null, and <span data-x="concept-environment-active-service-worker">active service worker</span>
+   null, <span data-x="concept-environment-active-service-worker">active service worker</span>
    to null.</p></li>
 
+   <li><p>Set <var>settings object</var>'s <span data-x="concept-environment-storage-key">storage
+   key</span> to the result of <span>compute a storage key for an environment settings object</span>
+   given <var>settings object</var>'s <span data-x="concept-settings-object-origin">origin</span>
+   and <var>outside settings</var>'s <span data-x="concept-environment-storage-key">storage
+   key</span>.</p></li>
+
    <li><p>If <var>worker global scope</var> is a <code>DedicatedWorkerGlobalScope</code> object,
    then set <var>settings object</var>'s <span>top-level origin</span> to <var>outside
    settings</var>'s <span>top-level origin</span>.</p></li>
@@ -105300,6 +105322,11 @@ interface <dfn interface>WorkletGlobalScope</dfn> {};</code></pre>
    <span data-x="concept-environment-active-service-worker">active service worker</span> to
    null.</p></li>
 
+   <li><p>Set <var>settings object</var>'s <span data-x="concept-environment-storage-key">storage
+   key</span> to the result of <span>compute a storage key for an environment settings object</span>
+   given <var>origin</var> and <var>outsideSettings</var>'s
+   <span data-x="concept-environment-storage-key">storage key</span>.</p></li>
+
    <li><p>Set <var>realm</var>'s [[HostDefined]] field to <var>settingsObject</var>.</p></li>
 
    <li><p>Return <var>settingsObject</var>.</p></li>