What does this mean?
Heading elements (
<h2>, ...) must contain some machine-readable
Heading should never be empty, or just contain whitespace:
Headings which contain images or other media must specify alternative text:
<h1> <img src="heading.png" alt="Press releases"> </h1>
See Technique H42 for more details.
How close this website is to fixing this issue.
This is probably because we're still working on this. Take a look at another issue.