Kilotest: Diagnoses of base element missing where required violation by HTML element 8 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 8

• Tag name: BASE
• Text: [not applicable]
• Start tag: <base href="https://omsi.edu/">
• XPath: /html/head[1]/base[1]
• Bounding box: x = 0, y = 0, width = 0, height = 0

About the base element missing where required issue

• Why it matters: Browser cannot find a needed external resource
• Priority: highest
• Related WCAG standard: 1.3.1

Diagnoses

Here is how tools diagnose the base element missing where required issue for HTML element 8 of the Oregon Museum of Science and Industry page.

1. The base element must come before any link or script elements in the document.

   Tool: Html Checker API (World Wide Web Consortium)