[Accessibility] Add aria-labelledby to MatDialogConfig API #7755
Labels
good first issue
This issue is a good place to start for first time contributors to the project
help wanted
The team would appreciate a PR from the community to address this issue
P4
A relatively minor issue that is not relevant to core functions
Bug, feature request, or proposal:
Add aria-labelledby to MatDialogConfig API. MatDialogConfig API supports aria-describedby, but it doesn't support aria-labelledby.
Check MDN documentation for an example: https://developer.mozilla.org/en-US/docs/Web/Accessibility/ARIA/ARIA_Techniques/Using_the_dialog_role
What is the expected behavior?
Screen reader should read dialog label from aria-labelledby attribute.
What is the current behavior?
Screen reader is not reading dialog label.
Which versions of Angular, Material, OS, TypeScript, browsers are affected?
"@angular/material": "2.0.0-beta.12"
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