Kilotest: Diagnoses of aria attribute invalid violation by HTML element 82 on Metropolitan Transportation Authority page

Basics

About the Metropolitan Transportation Authority page

• URL: https://www.mta.info/
• Tested 30 days ago by job oyu on 2026-06-20 at 13:49

About HTML element 82

• Tag name: BUTTON
• Text: MENU
• Start tag: <button id="mta-burger-trigger" class="mta-tr-burger mta-order-first mta-cursor-pointer mta-tr-burger-label mta-flex mta-items-center mta-justify-center mta-w-500 hover:mta-bg-primary-300 mta-m-000 mta-relative mta-z-200" aria-label="Main Menu" aria-expanded="false" aria-haspopup="menu" aria-controls="main-menu">
• XPath: /html/body/div[1]/section[1]/div[1]/button[1]
• Bounding box: x = 0, y = 0, width = 80, height = 80

About the aria attribute invalid issue

• Why it matters: Item behavior violates user expectations
• Priority: highest
• Related WCAG standard: 4.1.2

Diagnoses

Here is how rule engines diagnose the aria attribute invalid issue for HTML element 82 of the Metropolitan Transportation Authority page.

1. ARIA attributes must conform to valid values; Unable to determine if aria-controls referenced ID exists on the page while using aria-haspopup: aria-controls="main-menu"

   Tool: Axe (Deque)

   Rule: aria-valid-attr-value