title: Highcharts nodeName of undefined
body: <p>When playing around with a chart generated by highcharts, and exporting it to SVG, I get a lot of errors, about 1000 (nodeName of undefined) per 6 seconds</p>
  
  <p><strong>The code responsible is this:</strong></p>
  
  <pre><code>element = wrapper.element,
  nodeName = element.nodeName, // &lt;---- Here (Cannot read property 'nodeName' of undefined)
  renderer = wrapper.renderer,
  skipAttr,
  attrSetters = wrapper.attrSetters,
  shadows = wrapper.shadows,
  hasSetSymbolSize,
  ret = wrapper;
  </code></pre>
  
  <p><strong>The stacktrace</strong> (in Chrome 17.0.963)</p>
  
  <pre><code>Uncaught TypeError: Cannot read property 'nodeName' of undefined
  SVGElement.attr highcharts.src.js:2008
  init.Effect.HighchartsTransition.Class.create.update prototype-adapter.src.js:86
  (anonymous function) effects.js:1
  Effect.Base.Class.create.loop effects.js:1
  Effect.ScopedQueue.Class.create.loop effects.js:1
  b prototype.js:1
  </code></pre>
  
  <p><strong>The fiddle to re-create</strong> : <a href="http://jsfiddle.net/epoch/6c2qE/" rel="nofollow">here</a>, to reproduce click the series on/off and then click on the <code>My Download</code> link, switch on/off again and click on the <code>My Download</code> link again.</p>
  
  <p>My question is as follows, is this my code, or a bug in highcharts; and how can I fix it?</p>