title: Angular doesn't show JavaScript errors on Console
body: <p>I don't know what happened but from someday I cannot see any javascript error on console. </p>
  
  <p>If the page is blank for some javascript error I need to put a breakpoint on that Angular function to see which is the error.</p>
  
  <pre><code>function getDebugContext(error) {
  return (/** @type {?} */ (error))[ERROR_DEBUG_CONTEXT];
  </code></pre>
  
  <p>}</p>