Edit fiddle - JSFiddle - React, Tailwind, and code Playground

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<h1>IFrame, normal</h1>
<p>src of this iframe is <code>http://www.example.com/</code></p>
<iframe src="http://www.example.com/"></iframe>

<h1>IFrame, view-source</h1>
<p>src of this iframe is <code>view-source:http://www.example.com/</code></p>
<iframe src="view-source:http://www.example.com/"></iframe>

<h1>IFrame, view-source, on Google</h1>
<p>Google sets X-Frame-Options:SAMEDOMAIN, so we expect view-source to fail here:
<p>src of this iframe is <code>view-source:http://www.google.com/</code></p>
<iframe src="view-source:http://www.google.com/"></iframe>

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JSFiddle - React, Tailwind, and code Playground

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Use pre-released features

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Console