Checkpoints - Graphical form buttons should have "alt" text
Why is this important?
A blind user cannot see a graphical form button and they would be reliant on a screen reader to interpret what the form button does. Adding an alt attribute provides the description on what the button does.
How can I resolve this issue?
Add an alt attribute describing the purpose of the button
What topics do this checkpoint affect?
Accessibility (WCAG 2 Level A, 1.1.1)
Can you explain how this checkpoint works?
The checkpoint examines the page and reports if any <input type="image"> element does not have alternative text.