title: PHP Redirecting to an app link
body: <p>I'm trying to redirect to an URL like this:</p>
  
  <pre><code>example://
  </code></pre>
  
  <p>to open a specific app. But when I use the <code>header()</code> function in PHP it redirects to </p>
  
  <pre><code>http://example//
  </code></pre>
  
  <p>when using <code>header('Location: //example://');</code>. It removes the <code>:</code> and I don't think it will work with http in front. Also when not using the // before the URL it ofcourse adds it to the end of the host URL of the current page.</p>