<p class=XXX>This is expected to change; see

<a href="https://privacycg.github.io/storage-partitioning/">Client-Side Storage Partitioning</a>.

<p>To <dfn export>obtain a storage key</dfn>, given an <a>environment settings object</a>

<p>To <dfn export>obtain a storage key</dfn>, given an <a for=/>environment</a>

<var>environment</var>, run these steps:

<ol>

<li><p>Return <var>key</var>.

</ol>

<p>To <dfn export>obtain a storage key for non-storage purposes</dfn>, given an <a>environment

settings object</a> <var>environment</var>, run these steps:

<p>To <dfn export>obtain a storage key for non-storage purposes</dfn>, given an

<a for=/>environment</a> <var>environment</var>, run these steps:

<ol>

<li><p>Let <var>key</var> be a <a>tuple</a> consisting of <var>environment</var>'s

<a for="environment settings object">origin</a>.

<li><p>Let <var>origin</var> be <var>environment</var>'s

<a for="environment settings object">origin</a> if <var>environment</var> is an

<a>environment settings object</a>; otherwise <var>environment</var>'s

<a for=environment>creation URL</a>'s <a for=url>origin</a>.

<li><p>Return <var>key</var>.

<li><p>Return a <a>tuple</a> consisting of <var>origin</var>.

</ol>

<p>To determine whether a <a>storage key</a> <var>A</var>