Steps to reproduce:

In any browser (Firefox/Chrome):

1. Head on over to my aria-errormessage code pen
2. Enter a number that is 12 or less and click the "Test it" button.
3. (optionally) you can move focus away from and back to the input field.

In the code aria-invalid gets set to true on the input and the error message is displayed (it is already connected using aria-errormessage).

Expected behavior:

When aria-invalid is set to true on a form field the screen reader should read any error message id referenced from the input field using aria-errormessage.

NVDA would read the error message after the label and value of the form field (similar to how it would be if it were referenced with aria-describedby), possibly adding a word like "error message" or "error".

Actual behavior:

NVDA does not read the error message when the invalid input is focused.

System configuration:

NVDA version: 2018.1
(with IE11, Chrome 65 and Firefox 52-ESR), was not able to test on latest Firefox build.

NVDA Installed or portable:
Installed

Other information:

Windows version:

Windows 7 and 8 tested.

Name and version of other software in use when reproducing the issue:

Tested with the major browsers on Windows (see above).

Other questions:

N/A.