title: NSString to NSURL?
body: <p>Trying to convert a string to NSURL and this is not happening.</p>
  
  <pre><code>barcodeTextLabel.text = foundCode.barcodeString;
  urlToGrab = [NSString stringWithFormat:@"%@", foundCode.barcodeString]; // foundCode.barcodeString is an NSString
  </code></pre>
  
  <p>urlToGrab shows the following "error invalid CFStringRef"</p>