title: Highcharts buggy with more than 999 items in series data?
body: <p>I created an example <a href="http://jsfiddle.net/kHRPL/1/" rel="noreferrer">fiddle</a>. It is using some techniques coming from Nicks answer on <a href="https://stackoverflow.com/questions/8514457/set-additional-data-to-highcharts-series">this Question</a>.</p>
  
  <p>When I tried to do it with my data model nothing happened. A debug session showed me that if I do:</p>
  
  <pre><code>var maxItems = 1000;
  var chartData = new Array(maxItems);
  for (var i = 0; i &lt;= maxItems; i++) {
      chartData[i] = { y: 3, x: 1380385867013, myData:'hello' };
  }
  </code></pre>
  
  <p>Highcharts will not display anything. If I then change the value of maxItems to 999 it will work.</p>
  
  <p>Another strange thing is, that when I use:</p>
  
  <pre><code>chartData[i] = [ 1380385867013, 3 ];
  </code></pre>
  
  <p>I can as much items as I want but I need the "myData" option to add tooltips there. What now?</p>