Kilotest: Diagnoses of element unknown violation by HTML element 299 on Center for Justice and Accountability page

Basics

About the page

• URL: https://cja.org/
• Tested 7 days ago on 2026-10-03 at 03:52 by job 261003T0350-em7
• Summary of results:
  • Rule engines:
    • Called: 12
    • Were able to test: 12
    • Reported any rule violations: 10
  • Violations: 679
  • Violators: 304
  • Issues: 62
• Download the full technical report (JSON)

About the issue

• Why it matters: Page includes an unknown element that the browser cannot process
• Priority: highest
• Related WCAG standard: 4.1
• Reported by 1 rule engine (Html Checker API)
• Violations: 1
• Violators: 1

About the violator

• Tag name: IMAGE_LISTS
• Text: [not applicable]
• Start tag: <image_lists style="display:none">
• XPath: [not obtained]
• Bounding box: [not obtained]
• Reported by Html Checker API

Diagnoses

Here is how rule engines diagnose the element unknown issue for HTML element 299 of the Center for Justice and Accountability page.

1. The image_lists element is a completely-unknown element that is not allowed anywhere in any HTML content.

   Rule engine: Html Checker API (World Wide Web Consortium)