I'm using Highcharts (technically the Highstock .js file though) to display a chart on my site. Everything works perfectly except the tooltip. The API specifies that {series.name} should work for specifying the series name in the tooltip, but the chart actually displays "{series.name}" instead of the name itself. Here's a simplified jsFiddle that illustrates the issue. Switch the comments on the headerFormat: lines in the tooltip section and you'll see that {point.key} works as expected, but {series.name} does not.
What's wrong with the code to produce this problem?
