By Pressing F5 (Refresh) why the chart is not displaying?

Hi Team,
I am using dhtmlx stacked bar chart to display percentage per month. There are 6 widgets to display each month data. It is working fine by clicking the button, it will display the chart. All the request are widgets call using ajax request. If I click F5 key the chart is not display properly. I found that, there is the javascript error "
An invalid or illegal string was specified" code: "12
ctx.moveTo(x0,y0); in skins/basic/dhtmlxChart/codebase/dhtmlxchart_debug.js (line 1762)

Please find attached screenshots which is F5 pressed chart and regular chart. Please find the difference and help me out from this issue. thanks




The issue does not reproduce locally. Please have a look at the sample:

dhtmlx.com/docs/products/dht … chart.html

You may attach the complete demo - we will test it and try to find the reason for the problem
(the sample should not contain server-side scripts)