I know mobile development is a bit behind development for computers, but it seems to me I used to be able to do this. I’m talking about selecting different LPI settings or different greyscale settings than the defaults, when using an iPad. I’ve tried it on iPad Pro 9.7" running iOS version 10.3.1 and the current versions of Safari and Chrome. The drop down menu will drop down if I long-press the link, but I can’t select a different option.
Thanks for catching and reporting that. We are taking a look!
We’re still at work on the mobile experience – you’ll see improvements over time!