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描述
What is the expected behavior?
Scroll at the edges(bottom edge, top edge) of dialog content not blocked..
What is the current behavior?
When I test your example Dialog with header, scrollable content and actions - on iPhone - and I scroll and reach the bottom of the scrollable content - when I by accident try to scroll once more towards the bottom - the scroll becomes unresponsive and I cant scroll up or down until I wait one second or more and try to scroll again towards the top...
What are the steps to reproduce?
https://stackblitz.com/angular/nqvvaaopbel?file=app%2Fdialog-content-example.ts Scroll till the bottom end, and when You reach the bottom and scroll bar dissapears - try to scroll again towards bottom - at that moment scroll is blocked (off course you cant scroll towards the bottom because you reached the end - BUT at that moment you ALSO CANT SCROLL TOWARDS THE TOP and seems like scroll is unresponsive until you stop touching the screen for a short time - for example 1second (or little bit less maybe)...
Which versions of Angular, Material, OS, TypeScript, browsers are affected?
I tested it on IPhone, Safari, version 12.1...