Steps to Reproduce:

• Launch a wiki page
• Navigate till "Edit " and hit enter
• Navigate till "Page Options" and hit enter
• Navigate till "Page settings" and hit enter.
• Start Screen reader and navigate till "Redirect this page to" checkbox .
• Check this checkbox and add some text inside the edit box and remove it , it will throw error .
• Observe the announcement by screen reader

Actual Results:

• Screen reader is not announcing error message when thrown

Expected Results:

• As soon as the message appear on the screen it should be read my the screen reader