title: Is it possible to add a link into a flash message?
body: <p>In my Symfony controller I provide an error message via FlashBag like so:</p>
  
  <pre class="lang-php prettyprint-override"><code>$this-&gt;get('session')-&gt;getFlashBag()-&gt;add('error', 'The code you provided didn\'t match what we expected.');
  </code></pre>
  
  <p>This renders the expected output, is it possible for me to add a link? So I would be able to output a message like:</p>
  
  <blockquote>
    <p>The code you provided doesn't match what we expected, if you have continued trouble, consider looking into <a href="https://support.google.com/accounts/answer/185834?hl=en#sync" rel="noreferrer">common problems and how to solve them.</a></p>
  </blockquote>
  
  <p>I've already tried adding in it in using markdown and HTML syntax, neither of which work, <a href="http://symfony.com/doc/current/book/controller.html#flash-messages" rel="noreferrer">the documentation on the feature</a> does not say if it is or is not possible, and there are currently no questions on SO that address this.</p>