No plot being displayed in IE 10

I am using Plotly to plot very simple bar or pie charts.
The plots are displayed fine in chrome, mozilla and safari.
But Internet explorer 10 can not show any of the plots.
Other Javascript functionality is working fine.

The IE can not even load the example charts from the website
e.g. https://plot.ly/javascript/pie-charts/

Is there anything that should be taken care of ?

Our doc pages have issues with IE < 11, but our non-WebGL based graph should work just fine in IE9+