title: cljs is not defined in LightTable
body: <p>I connected my LightTable to Firefox using the script tag.</p>
  
  <p>However, when I'm evaluating the form </p>
  
  <pre><code>(def a 5)
  </code></pre>
  
  <p>inside my cljs file, I get the following exception thrown out in Firefox:</p>
  
  <pre><code>ReferenceError: cljs is not defined
  
  var exdata = cljs.core.ex_data(e);
  </code></pre>
  
  <p>at ws.js (line 121)</p>
  
  <p>But the form </p>
  
  <pre><code>(js/alert "abc")
  </code></pre>
  
  <p>can be evaluated, and there's a window poped showing "abc", but there's none evaluation result shown in the LightTable.</p>
  
  <p>Anyone can help me fix this? Thx.</p>