Kilotest: Diagnoses of ID not unique violation by HTML element 166 on International Consortium of Investigative Journalists page

Here is how tools diagnose the ID not unique issue for HTML element 166 of the International Consortium of Investigative Journalists page.

Basics

• About the ID not unique issue
  • Why it matters: User may be pointed to the wrong item
  • Priority: highest
  • Related WCAG standard: 4.1.1
• About the International Consortium of Investigative Journalists page
  • URL: https://www.icij.org/
  • Tested on 2026-04-03 at 03:59
• About HTML element 166
  • Tag name: BUTTON
  • Text: [not applicable]
  • Start tag: <button id="navBarCollapse" class="navbar-toggler">
  • XPath: /html/body/header[1]/div[1]/div[1]/div[1]/span[1]/button[2]
  • Bounding box: x = 62, y = 66, width = 56, height = 40

Diagnoses

1. Duplicate id attribute value "navBarCollapse" found on the web page.

   Tool: HTML CodeSniffer (Squiz Labs)

   Rule: E-WCAG2AAA.Principle4.Guideline4_1.4_1_1.F77

2. Duplicate ID navBarCollapse.

   Tool: Html Checker API (World Wide Web Consortium)