-ms-high-constrast is in the process of being deprecated

[happybuddha]

Is this a regression?

• Yes, this behavior used to work in the previous version

The previous version in which this bug was not present was

No response

Description

When using Material Dialog, in edge, in the console, I get a
[Deprecation] -ms-high-constrast is in the process of being deprecated. Please see <URL> for tips on updating to the new Forced Colors Mode standard.

Using the Dialog as :

<h2 mat-dialog-title>{{data.title}}</h2>

<mat-dialog-content>
    <p>{{data.message}}</p>
</mat-dialog-content>

<mat-dialog-actions [align]="'end'">  
    <button mat-raised-button cdkFocusInitial mat-dialog-close [mat-dialog-close]="false">
        {{data.cancelCaption}}
    </button>
    <button mat-raised-button color="primary" [mat-dialog-close]="true">
        {{data.confirmCaption}}
    </button>
</mat-dialog-actions>

I also discussed this on stack overflow : https://stackoverflow.com/questions/78595309/how-to-address-the-ms-high-constrast-deprecation-message-in-edge/78601405

Reproduction

StackBlitz link:
Steps to reproduce:
1.
2.

Expected Behavior

To not see the deprecated warnings in Edge developer console

Actual Behavior

Environment

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

[crisbeto]

I don't see any references to it in our repository. Does the warning say where the usage is coming from?

[happybuddha]

I don't see any references to it in our repository. Does the warning say where the usage is coming from?

It points to the code in my angular project. When I right click on the dialog box -> inspect -> Ctrl+f and search for high-contrast I see two occurrences, one of which this issue is about:

If this is not what you are looking for, please give me steps to how I can find out the information you are looking for.

[crisbeto]

Ah, I see. We don't have much control over those styles at the moment, but we're in the process of moving away from them. The dialog specifically was already moved in #29068.

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