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Navigation: Add optimization to ignore duplicate navigations #11765

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Expand Up @@ -106290,6 +106290,42 @@ location.href = '#foo';</code></pre>
data-x="apply the traverse history step">traversing</span> are ignored.</p>
</li>

<li>
<p>If <var>navigable</var>'s <span>ongoing navigation</span> is not null, and all of the following
are true:</p>

<ul>
<li>
<p>the time elapsed since the ongoing navigation was initiated is within a
user-agent-defined threshold;</p>
</li>
<li>
<p>both the new and ongoing navigations are HTTP GET requests, and the new navigation is not
a form submission;</p>
</li>
<li>
<p>the navigations have an identical <var>url</var>, <span
data-x="document-state-initiator-origin">initiator origin</span>, <span
data-x="document-state-request-referrer">referrer</span>, <span
data-x="document-state-request-referrer-policy">request referrer policy</span>,
<var>userInvolvement</var>, <var>historyHandling</var>, and request headers,</p>
</li>
</ul>
<p>then:</p>

<ol>
<li>
<p>Invoke <span>WebDriver BiDi navigation failed</span> with <var>navigable</var> and a new
<span>WebDriver BiDi navigation status</span> whose <span
data-x="navigation-status-id">id</span> is <var>navigationId</var>, <span
data-x="navigation-status-status">status</span> is "<code
data-x="navigation-status-canceled">canceled</code>", and <span
data-x="navigation-status-url">url</span> is <var>url</var>.</p>
</li>
<li><p>Return.</p></li>
</ol>
</li>

<li>
<p><span>Set the ongoing navigation</span> for <var>navigable</var> to
<var>navigationId</var>.</p>
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