title: Split string by colon but ignore URL's
body: <p>I need to split a string by colons, but ignore colons within urls presented in that string. For example:</p>
  
  <pre><code>var str = 'www.website.com:http://website.com/';
  </code></pre>
  
  <p>The result should be:</p>
  
  <pre><code>["www.website.com", "http://website.com/"]
  </code></pre>
  
  <p>It may be a lot of addresses in the row.</p>
  
  <p>I have tried a javascript <code>split()</code> with some regex like <code>(:)(?:[^\/][^\/])</code> but that not helping much.</p>