Reproduction

https://stackblitz.com/edit/angular-2ebx1r?file=src/app/./text-field-autosize-textarea-example.html

Expected Behavior

What behavior were you expecting to see?

When a textarea has a long placeholder or label and the textarea using cdkTextareaAutosize, the text area should be auto-sized to support the length of the placeholder

Actual Behavior

What behavior did you actually see?

The text area does not auto-size to the placeholder or label used, and instead stays at the min number of rows and shows an internal (scrollbar?) the scroll through the placeholder

Environment

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