Environment Information

• Package version(s): latest
• Browser and OS versions: Sarafi / IOS14

Please provide a reproduction of the bug in a codepen:

open this page on mobile browser, and click Split Button, it will trigger menu list display rather than original button click event.

Actual behavior:

It will trigger menu list display.

Expected behavior:

It will trigger original button click event.

Priorities and help requested:

Are you willing to submit a PR to fix? (Yes, No)

Requested priority: (Blocking, High, Normal, Low) High

Products/sites affected: (if applicable)