Accessibility related issue for rails core.txt

Accessibility related issues for devise gem. 
# page: 
1) aria-required(property) is missing.
Email, Password, Password Confirmation are manditory fields.
aria-required: indecates that user input is required on the element before a form may be submitted.
Note: The fact that the element is required is often presented visually (such as a sign or symbol after the widget). Using the aria-required attribute allows the author to explicitly convey to assistive technologies that an element is required.
2) Validation Errors must be accessible. After submitting # form and validation error display then focouse was not shipt on the error list.    
# page: