Steps:

• https://w3c.github.io/html-aria/tests/readonly-test.html
• run accessibility checker
• note that for Test 1 (aria-readonly="carview.php?tsp=true" with readonly) input type=password, date, month, week, time are flagged as "The WAI-ARIA role or attribute 'aria-readonly' is not valid for the element <input>" violations
• instead, should flag all 13 inputs in the test with a warning saying authors shouldn't use aria-readonly="carview.php?tsp=true" with readonly