For a line chart with sequential 0 values, 0 points are not connected if the min axis of the Y axis is set to 0. Check jsFiddle.
http://jsfiddle.net/ke7RM/
There seems to be a clipPath in SVG that truncates this line, but I cannot find a way to change this path through the Highcharts API.
<clipPath id="highcharts-1"><rect fill="none" x="0" y="0" width="332" height="292"></rect></clipPath>
Any ideas?
EDIT: It looks like this has been fixed in the latest version. Thanks!
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