mattooltip and mobile devices

[twoheaded]

Bug, feature request, or proposal:

bug

What is the expected behavior?

Tooltip on high pages must be shown on mobile devices

What is the current behavior?

Tooltip isn't shown

What are the steps to reproduce?

https://stackblitz.com/edit/angular-9hcbcn

Open in new window, toggle device toolbar, scroll down to the Action button. Press button. There is no tooltip on click/longpress.

Can check this link https://angular-9hcbcn.stackblitz.io/ on your device.

What is the use-case or motivation for changing an existing behavior?

Which versions of Angular, Material, OS, TypeScript, browsers are affected?

Chrome, Android

Is there anything else we should know?

[jelbourn]

I can confirm that tooltips aren't showing up on my own Android device.