Some customers say they can reach other web sites with IE11 in Win7 and Win 8 but not ours.
I realise IE11 is not supported on these versions of Windows but we do not want to turn customers away.
Our site uses the Supra theme. The basic Supra skeleton site fails on webpagetest.org set to IE11 (Response header: HTTP/1.1 302 Found). However the basic Learn2 with GitSync skeleton succeeds (Response header: HTTP/1.1 200 OK).
We cannot see any obvious difference between the Supra and Learn2 settings and do not know where to look next.
Any ideas how to resolve this?