iOS Safari OffCanvas Navigation Scrolling

[spencerfinnell]

Describe the bug

Safari (the new IE) has some trouble scrolling the contents of the offcanvas menus sometimes. It seems to focus irrelevant elements and try to scroll those instead.

There is also the menu bar which seems to be taken in to account of the page height, making it hard to scroll to the bottom of the menu completely (the last number of pixels equal to the height of the menu bar.)

To Reproduce

Steps to reproduce the behavior:

1. Go to https://demos.bigboxwc.com/default/shop
2. Click on "Filter Results"
3. Try to use menu.
4. See error

Expected behavior

Full menu should be accessible and always scrollable.

[spencerfinnell]

This also occurs on Google Chrome mobile.