<h3 dir="auto">Preflight Checklist</h3>
<ul class="contains-task-list">
<li class="task-list-item"><input type="checkbox" id="" disabled="" class="task-list-item-checkbox" checked=""> I have read the <a href="https://github.com/electron/electron/blob/master/CONTRIBUTING.md">Contributing Guidelines</a> for this project.</li>
<li class="task-list-item"><input type="checkbox" id="" disabled="" class="task-list-item-checkbox" checked=""> I agree to follow the <a href="https://github.com/electron/electron/blob/master/CODE_OF_CONDUCT.md">Code of Conduct</a> that this project adheres to.</li>
<li class="task-list-item"><input type="checkbox" id="" disabled="" class="task-list-item-checkbox" checked=""> I have searched the <a href="https://www.github.com/electron/electron/issues">issue tracker</a> for a feature request that matches the one I want to file, without success.</li>
</ul>
<h3 dir="auto">Electron Version</h3>
<p dir="auto">12.0.1</p>
<h3 dir="auto">What operating system are you using?</h3>
<p dir="auto">Windows</p>
<h3 dir="auto">Operating System Version</h3>
<p dir="auto">Windows 10 version 20H2</p>
<h3 dir="auto">What arch are you using?</h3>
<p dir="auto">x64</p>
<h3 dir="auto">Last Known Working Electron version</h3>
<p dir="auto"><em>No response</em></p>
<h3 dir="auto">Expected Behavior</h3>
<p dir="auto">Run "window.open" to display the three levels of browsers in the Electron browser.</p>
<h3 dir="auto">Actual Behavior</h3>
<p dir="auto">The parent screen -&gt; child screen is displayed, but the child screen -&gt; grandchild screen is not displayed correctly.</p>
<h3 dir="auto">Testcase Gist URL</h3>
<p dir="auto"><em>No response</em></p>
<h3 dir="auto">Test github.io repository</h3>
<ul dir="auto">
<li><a href="https://github.com/takman00/electron-test">https://github.com/takman00/electron-test</a></li>
</ul>
<h3 dir="auto">Test github.io pages</h3>
<ul dir="auto">
<li><a href="https://takman00.github.io/electron-test/" rel="nofollow">https://takman00.github.io/electron-test/</a></li>
</ul>
<h3 dir="auto">Operation image</h3>
<h4 dir="auto">Electron oparation</h4>
<p dir="auto"><a target="_blank" rel="noopener noreferrer nofollow" href="https://user-images.githubusercontent.com/1650903/111288148-4322e780-8687-11eb-90dc-50e2021b5d34.jpg"><img src="https://user-images.githubusercontent.com/1650903/111288148-4322e780-8687-11eb-90dc-50e2021b5d34.jpg" alt="electron1" style="max-width: 100%;"></a></p>
<h4 dir="auto">Chrome oparation</h4>
<p dir="auto"><a target="_blank" rel="noopener noreferrer nofollow" href="https://user-images.githubusercontent.com/1650903/111288158-461dd800-8687-11eb-9b4a-716bca282907.jpg"><img src="https://user-images.githubusercontent.com/1650903/111288158-461dd800-8687-11eb-9b4a-716bca282907.jpg" alt="electron2" style="max-width: 100%;"></a></p>
<h3 dir="auto">Preflight Checklist</h3>
<ul class="contains-task-list">
<li class="task-list-item"><input type="checkbox" id="" disabled="" class="task-list-item-checkbox" checked=""> I have read the <a href="https://github.com/electron/electron/blob/master/CONTRIBUTING.md">Contributing Guidelines</a> for this project.</li>
<li class="task-list-item"><input type="checkbox" id="" disabled="" class="task-list-item-checkbox" checked=""> I agree to follow the <a href="https://github.com/electron/electron/blob/master/CODE_OF_CONDUCT.md">Code of Conduct</a> that this project adheres to.</li>
<li class="task-list-item"><input type="checkbox" id="" disabled="" class="task-list-item-checkbox" checked=""> I have searched the <a href="https://www.github.com/electron/electron/issues">issue tracker</a> for a feature request that matches the one I want to file, without success.</li>
</ul>
<h3 dir="auto">Electron Version</h3>
<p dir="auto">12.0.4</p>
<h3 dir="auto">What operating system are you using?</h3>
<p dir="auto">macOS</p>
<h3 dir="auto">Operating System Version</h3>
<p dir="auto">macOS Catalina 10.15.7</p>
<h3 dir="auto">What arch are you using?</h3>
<p dir="auto">x64</p>
<h3 dir="auto">Last Known Working Electron version</h3>
<p dir="auto">11.4.5</p>
<h3 dir="auto">Expected Behavior</h3>
<p dir="auto">With either the <code class="notranslate">sandbox</code> option or the <code class="notranslate">nativeWindowOpen</code> option enabled:</p>
<p dir="auto">When you open a new window using <code class="notranslate">window.open</code> from a window that is created using <code class="notranslate">window.open</code>, I expect to see 3 windows rendering their own html.</p>
<h3 dir="auto">Actual Behavior</h3>
<p dir="auto">When you open a new window using <code class="notranslate">window.open</code> from a window that is created using <code class="notranslate">window.open</code>, the second window goes blank (white screen). Closing either of these two windows closes the other window.</p>
<p dir="auto">Step to reproduce:</p>
<ul dir="auto">
<li>Run the attached sample:</li>
<li>Click open window to create a new window</li>
<li>Click open window from the new window to create third window</li>
<li>Observe second window is blank</li>
</ul>
<h3 dir="auto">Testcase Gist URL</h3>
<p dir="auto"><a href="https://gist.github.com/naineshsolanki-lmi/587f79ad7a4f0c794f9561f9ec85b389">https://gist.github.com/naineshsolanki-lmi/587f79ad7a4f0c794f9561f9ec85b389</a></p>
<h3 dir="auto">Additional Information</h3>
<p dir="auto"><em>No response</em></p>