Set focus to textbox when searching on mobile

[cpradio]

This is a dup of

Auto focus cursor in search box on mobile

When users tap on magnifying glass on mobile, It would provide a smoother experience if we could auto-focus the cursor in the search box and bring up the keyboard. Any issues with this?

But from this, it is intentionally not doing it.

Auto focus cursor in search box on mobile

No, it was removed some time ago because iOS has terrible scrolling issues when you auto focus on elements that have fixed positioning. In general any auto focus on fixed items is disabled everywhere on the site.