CDK Overlay not calling the detach event while using CloseScrollStrategy

[aryaroudi]

Reproduction

Use StackBlitz to reproduce your issue: https://stackblitz.com/edit/angular-jfzhcl

Steps to reproduce:

1. Open the menu do the scroll, menu get closed and now you need to click 2 times on the button to open the menu again

Expected Behavior

What behavior were you expecting to see?

the detach output should be called to close the menu correctly.

Actual Behavior

What behavior did you actually see?

The detach output never call the close function that I sent in when the menu gets closed by doing the scroll

Environment

• Angular: 8
• CDK/Material: 8
• Browser(s): chrome
• Operating System (e.g. Windows, macOS, Ubuntu):

[crisbeto]

Should be fixed by #7950.

[aryaroudi]

thanks @crisbeto waiting for the merge 👍

[vanrado]

Thanks for initiative to fix that, but it seems that fix is still not merged. Is there any easy workaround? I would use close scroll strategy. One workaround could be create custom listener/observer on scrollevent, but I prefer to use more "Angular way"... Thanks

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