Kilotest: Diagnoses of element closure invalid violation by HTML element 1561 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 42w on 2026-05-12 at 23:14

About HTML element 1561

• Tag name: IFRAME
• Text: [not applicable]
• Start tag: <iframe id="ce_proto_iframe" title="CrazyEgg Tracking iframe" aria-hidden="true" style="display: none;">
• XPath: /html/iframe[1]
• Bounding box: x = 0, y = 0, width = 0, height = 0

About the element closure invalid issue

• Why it matters: Document contains invalid code
• Priority: high
• Related WCAG standard: 4.1.1

Diagnoses

Here is how tools diagnose the element closure invalid issue for HTML element 1561 of the Oregon Museum of Science and Industry page.

1. Stray start tag iframe.

   Tool: Html Checker API (World Wide Web Consortium)