Toggle off series and export as image

[arnoldpettibone]

Expected behavior

1. The user hides a series on the chart by clicking on the corresponding legend item.
2. The user exports the chart as image
3. The image fully resembles the chart shown in the main page

Actual behavior

1. The user hides the orange series on the chart by clicking on the corresponding legend item.
2. The user exports the chart as image
3. The image is different from the source. The hidden orange series line is shown moved to the left, outside the chart grid (see image)
   

Workaround

Set this option in the chart extender.

this.cfg.legend.rendererOptions: { seriesToggleReplot: true }

Even if the chart image is correct, the legend's voice for the hidden series is not strike through.