title: Chrome policy "ExternalProtocolDialogShowAlwaysOpenCheckbox" not working
body: <p>I am using the library <a href="https://github.com/aik099/PhpStormProtocol/" rel="nofollow noreferrer">https://github.com/aik099/PhpStormProtocol/</a> to get links to my IDE (PHPStorm) from the browser (Chrome). Everytime xdebug prints a warning, it attaches a link with an href like this:</p>
  <pre><code>phpstorm://open?file={filepath}&amp;line={line}
  </code></pre>
  <p><a href="https://i.stack.imgur.com/JCP9l.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/JCP9l.png" alt="xdebug_link" /></a></p>
  <p>That works perfect. The problem is that every time I click in the link I get a pop-up like this:
  <a href="https://i.stack.imgur.com/S0tWo.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/S0tWo.png" alt="popup" /></a></p>
  <p>I have tried following the steps I found here:
  <a href="https://superuser.com/questions/1481851/disable-chrome-to-ask-for-confirmation-to-open-external-application-everytime">https://superuser.com/questions/1481851/disable-chrome-to-ask-for-confirmation-to-open-external-application-everytime</a></p>
  <p>After enabling that <a href="https://chromeenterprise.google/policies/?policy=ExternalProtocolDialogShowAlwaysOpenCheckbox" rel="nofollow noreferrer">policy</a> in the register of windows, and validating it also in my browser I still have the same pop-up without the checkbox to allow this protocol forever.</p>
  <p><a href="https://i.stack.imgur.com/5Lz3Q.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/5Lz3Q.png" alt="enter image description here" /></a></p>