It looks like the textarea's aria-labelledby is populated with the id of the label, however, the label is not in the same shadow dom as the textarea, so this is not accessible in Chrome. This means that screen readers are not finding the label. (Same is true for aria-describedby)
Expected outcome
Screen readers should be able to read the label
Actual outcome
Screen readers can't read the label of a paper-textarea
Description
It looks like the textarea's aria-labelledby is populated with the id of the label, however, the label is not in the same shadow dom as the textarea, so this is not accessible in Chrome. This means that screen readers are not finding the label. (Same is true for aria-describedby)
Expected outcome
Screen readers should be able to read the label
Actual outcome
Screen readers can't read the label of a paper-textarea
Live Demo
http://jsbin.com/fepepop/edit?html,output (Taken from Issue 478)
Steps to reproduce
Browsers Affected