I remember this issue somehow, I also found this #2299 (which was closed as not reproducible). Can reproduce it now though.

Oooooh, good memory, I'd forgotten all about that!

I have now tested this behavior in Chrome, Firefox, and Safari, it occurs in all of those.

My observation: depending on the scrolled height at the previous page it will result as a space under the html.
My failed attempt: at web/src/index.ejs

 @media (max-width: 768px) {
            html, body {
                height: 100%;
                overflow-x: hidden; 
            }
        }

This will cause another issue : the header won't show up until I scroll to the top.(obviously not a good solution as it could affect any scrolling behavior)