Kilotest: Diagnoses of attribute invalid violation by HTML element 824 on Center for Democracy and Technology page

Basics

About the page

• URL: https://cdt.org/
• Tested 3 days ago on 2026-10-07 at 19:43 by job 261007T1941-nud
• Summary of results:
  • Rule engines:
    • Called: 12
    • Were able to test: 12
    • Reported any rule violations: 11
  • Violations: 1226
  • Violators: 632
  • Issues: 48
• Download the full technical report (JSON)

About the issue

• Why it matters: Item behaves improperly
• Priority: highest
• Related WCAG standard: 1.3.1
• Reported by 1 rule engine (Html Checker API)
• Violations: 156
• Violators: 64

About the violator

• Tag name: HEADER
• Text: Priority Topics … See all Topics
• Start tag: <header class="feed__section-header section-header :size-1 :align-center :border-none" data-pattern="section-header" reveal="1b/" reveal-initialized="">
• XPath: /html/body/div[1]/main[1]/section[3]/div[1]/header[1]
• Bounding box: x = 240, y = 2837, width = 1440, height = 104
• Reported by Html Checker API

Take me there

Diagnoses

Here is how rule engines diagnose the attribute invalid issue for HTML element 824 of the Center for Democracy and Technology page.

1. Attribute reveal not allowed on element header at this point.

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

2. Attribute reveal-initialized not allowed on element header at this point.

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