title: Replace string with special characters for empty string
body: <p>Say my string looks like this...</p>
  
  <pre><code>var find = '&amp;roadmap=1';
  </code></pre>
  
  <p>I want to replace <strong>all</strong> instances of that string in my url to <code>''</code>.</p>
  
  <p><code>url.replace(find, '');</code> seems to throw :</p>
  
  <pre><code>uncaught typeerror: url.replace is not a function
  </code></pre>
  
  <p>I assume it's because of the special characters within the find string itself. So how can I remove all instances of <code>&amp;roadmap=1</code> from my url?</p>