JSON parse unexpected character

JSON parse unexpected character

I see plenty of people run into this but their situations seem different. What is the problem in my case?
err: JSON.parse: unexpected character at line 1 column 2 of the JSON data
If jsonlint.com says it is ok, why does jQuery feel otherwise?

  1.  
    $(document).ready(function() {
  try {
    //alert('Here we go....');
    window.jsondata = [{"label_no":"205","label_name":"20th Century Fox Records"}];
    // https://jsonlint.com/ says Valid JSON    
    alert('window.jsondata length = ' + window.jsondata.length);
    alert('1st row = ' + window.jsondata[0]);
    var json = $.parseJSON(window.jsondata[0]);
    alert('json length = ' + json.length);
  }
  catch (err) {
    alert('err: ' + err.message); // err: JSON.parse: unexpected character at line 1 column 2 of the JSON data
  }
});