Try installing this:
series: { 'enableMouseTracking: false, shadow: false, animation: false' : nil}
This solution worked for me. I have a pdf view, and an html view and an implemented solution:
<more highchart options>
...
plotOptions: {
line: {
marker: {
enabled: false
},
dashStyle: 'ShortDash'
},
series: { #{request.format == 'pdf' ? 'enableMouseTracking: false, shadow: false, animation: false' : nil} }
},
...
<more highchart options>