[frosted-flakes]

Yeah, I meant `position: fixed` (brainfart—I knew it didn't sound quite right). But it shouldn't have any issues at all on Android. It's how most websites do sticky headers, and I've never seen any glitching.

In any case, there are a lot of reasons for scrolling the main document rather than having a subscroller, including:

1. Auto-hiding the address bar when scrolling down on mobile (it's not weird—all browsers do it) and pull-to-refresh in browsers that have it

2. Better accessibility because it doesn't break the PageUp/PageDown keys

3. Momentum scrolling

4. Better scrolling performance (higher framerate) because browsers optimise main document scrolling over subscrolling

5. Support for #fragment linking

6. etc.[0]

[0] https://nolanlawson.com/2018/11/18/scrolling-the-main-docume...

[dougk16]

The auto-hiding address bar on my 2 Android phones was straight-up glitchy with document scrolling, not the "convenience" behavior. Even other sites on my phone were fine. It was just my site, and I believe I tracked it down the the fixed side bar. When I get rid of that the scrolling was fine.

All your points have really convinced me to give document scrolling another go though. Thanks for the list and the link.