cdk-describedby-message-container is causing blank line at the end of the page

Which @angular/* package(s) are the source of the bug?

Don’t known / other

Is this a regression?

Yes

Description

This bug does not occur with Angular 12.1.0. I upgraded today to Angular 13.2.5, and this bug appears ( a blank line at the end of the page ). I should have this :

But i have this :

Problem caused by this :

Please provide a link to a minimal reproduction of the bug

No response

Please provide the exception or error you saw

No error but the problem is caused by this : 

<div class="cdk-describedby-message-container cdk-visually-hidden" style="visibility: hidden;"><div id="cdk-describedby-message-1">Sort</div></div>

If i delete the element, problem is solved…

I don’t understand why this appears, because i don’t have this element on my side…

### Please provide the environment you discovered this bug in (run `ng version`)

```true
Node : v16.14.0
Angular CLI : 13.2.5
Os : Windows (bash)

    "@angular/animations": "^13.2.5",
    "@angular/cdk": "^13.2.5",
    "@angular/common": "^13.2.5",
    "@angular/compiler": "^13.2.5",
    "@angular/core": "^13.2.5",
    "@angular/forms": "^13.2.5",
    "@angular/platform-browser": "^13.2.5",
    "@angular/platform-browser-dynamic": "^13.2.5",
    "@angular/router": "^13.2.5",

Anything else?

I don’t know which angular package is causing this problem. The only thing that i know is that the problem appears with angular : 13.2.5 and 14.0.0-next.5

[crisbeto]

Yes, this hasn’t changed in a few years. It has either been there and you never noticed it, or you started using some CDK functionality that started to show it.

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