title: Browser Security Error: "This page can't be displayed due to a security violation"
body: <p>I work for a web development firm, and I designed a page for some of our marketing people to add custom footers to various pages in our application. We have various test environments before we deploy our product for the world to see.</p>
  
  <p>The problem is, when someone tries to add a javascript:(void) call to the footer HTML, they are presented with a blank page with the following error message:</p>
  
  <pre><code>ERROR
  
  error
  
  This page can't be displayed due to a security violation. Contact support for additional information.
  </code></pre>
  
  <p>a picture is shown here:</p>
  
  <p><img src="https://i.stack.imgur.com/bAKyX.png" alt="http://imgur.com/hjGO1.png"></p>
  
  <p>The error will go away if the user gets rid of the Javascript:void calls. Is this error a server error? There is no code that directly handles this error in our application, and the browser returned a 200 OK POST response.</p>
  
  <p>This error is only occurring in our public-accessible environments, which again leads me to believe it is a server issue.</p>
  
  <p>Any help or information on this error would be great.</p>