If the customer is using IE 11 in compatibility mode, why not test the same?

The BDD tests are not yet comprehensive. But that is an excellent question, Vishal.

Funnily enough, we used to do in-house QA. We moved to an offshore team about three or four years ago.

Honestly we (the developers) used to only do unit testing. But our ongoing difficulties with our QA group have caused us to take on a lot more work, including the taking over of the automated testing, which used to be QA's purview. I appreciate your point that this is how they are used to working and will raise this with my manager.

Thanks but this doesn't answer my question, and I certainly don't have the authority to enforce a paradigm shift in programming methodologies.