Highlight path in d3 tree is not working in IE

[Jaishri Mahajan]

I created tree layout as in JSFiddle example http://jsfiddle.net/oo66o0q0/15/. Requirement is path should highlighted in red and with extra width when user click on node's right click menu "Highlight Route" option. This is working in chrome correctly but in IE highlighted route color becomes black. If I remove markers then it works in IE as well. How to resolve this issue in IE but not removing markers?