UserAgent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.77 Safari/537.36

Steps to reproduce the problem:
1. Open a page with an an ARIA based heading (role="heading") without an aria-level="..."
2. Run JAWS or NVDA screen reader
3. Read the heading

What is the expected behavior?
ARIA headings without an aria-level should simply be announced as "Heading". This is the behavior in Firefox and IE11

What went wrong?
1. Note that the heading is announced as "Heading, level 2"
2. This can also be verified using the accessibility panel in DevTools, which shows "Role: heading, Level: 2"

Did this work before? No 

Does this work in other browsers? Yes

Chrome version: 72.0.3603.0  Channel: stable
OS Version: 10.0
Flash Version:
 

Deleted: ariaheadingtest.html 318 bytes

ariaheadingtest.html 318 bytes View Download