Kilotest: Diagnoses of attribute value invalid
violation by HTML element 475 on Oregon Museum of Science and Industry page
Basics
About the Oregon Museum of Science and Industry page
- URL: https://omsi.edu/
- Tested 20 days ago by job
42won 2026-05-12 at 23:14
About HTML element 475
- Tag name:
BUTTON - Text:
Toggle
- Start tag:
<button class="btn btn-rounded btn-grey mega-menu-btn mega-menu-btn--global relative block" aria-controls="" aria-expanded="false"> - XPath:
/html/body/header[1]/div[2]/nav[1]/div[3]/button[1] - Bounding box: x = 0, y = 0, width = 0, height = 0
About the attribute value invalid
issue
- Why it matters: Item behaves improperly
- Priority: highest
- Related WCAG standard: 1.3.1
Diagnoses
Here is how tools diagnose the attribute value invalid
issue for HTML element 475 of the Oregon Museum of Science and Industry page.
- Bad value for attribute aria-controls on element button: An IDREFS value must contain at least one non-whitespace character.
Tool: Html Checker API (World Wide Web Consortium)