That worked!! Can you also tell me how to enable the header shadow by default? When I scroll down the class “av_header_transparency” is added which ads a nice drop shadow, but it isn’t there initially with this workaround.

Hi Victoria — unfortunately I didn’t get it working. I’m testing on Safari and Chrome on iOS (but desktop chrome in an iPhone 6 viewport does the same thing). If you scroll slowly from the top of the page you’ll see the header flash (visible -> transparent -> visible). Also the shadow on the header isn’t initially visible (it only appears after that flash) but that’s not a huge deal.