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Polar chart data series are misaligned #5220
Noticed a display glitch in certain polar charts after upgrading to 4.2.4 (with the current version of Chrome, and Firefox looks similar).
The following error is thrown at https://github.com/highcharts/highcharts/blob/v4.2.4/js/highcharts.src.js#L3268: Uncaught InvalidCharacterError: Failed to execute 'setAttribute' on 'Element': '0' is not a valid attribute name.
referenced this issue
Apr 18, 2016
Steps to reproduce: