bug 1153288 - Expect response, etc. in renderer
bug 1153288 - Expect response, etc. in renderer

Instead of using renderer_context.get('response'), use
renderer_context['response']. This is defined for all unit and
integration tests, as well as practical tests.

jwhitlock/web-platform-compat,mdn/browsercompat,jwhitlock/web-platform-compat,jwhitlock/web-platform-compat,mdn/browsercompat,mdn/browsercompat