title: "invalid label" Firebug error with jQuery getJSON
body: <p>I'm making a jQuery <code>$.getJSON</code> request to another domain, so am making sure that my GET URI ends with "callback=?" (i.e. using JSONP).</p>
  
  <p>The NET panel of Firebug shows that I am receiving the data as expected, but for some reason the Console panel logs the following error: "invalid label".</p>
  
  <p>The JSON validates with <a href="http://www.jsonlint.com" rel="nofollow noreferrer">JSONLint</a>, so I doubt that there is anything truly wrong with the structure of the data.</p>
  
  <p>Any ideas why I might be receiving this error?</p>