Kilotest: Diagnoses of code obsolete violation by HTML element 281 on Clean Air Task Force (CATF) page

Basics

About the page

• URL: https://www.catf.us/
• Tested 3 days ago on 2026-10-07 at 19:52 by job 261007T1941-eso
• Summary of results:
  • Rule engines:
    • Called: 12
    • Were able to test: 12
    • Reported any rule violations: 12
  • Violations: 697
  • Violators: 328
  • Issues: 52
• Download the full technical report (JSON)

About the issue

• Why it matters: Page contains code that is no longer standard
• Priority: high
• Related WCAG standard: 4.1
• Reported by 1 rule engine (Accessibility Checker)
• Violations: 2
• Violators: 2

About the violator

• Tag name: IFRAME
• Text: [not applicable]
• Start tag: <iframe title="CATF – Driving Impact" width="500" height="281" src="https://www.youtube-nocookie.com/embed/YFnPG735lDY?feature=oembed&amp;enablejsapi=1&amp;origin=https%3A%2F%2Fwww.catf.us" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" referrerpolicy="strict-origin-when-cross-origin" allowfullscreen="" data-gtm-yt-inspected-51501347_11="true" id="40183112" data-gtm-yt-inspected-13="true" scrolling="no" style="overflow: hidden;">
• XPath: /html/body/div[2]/div[1]/div[2]/div[1]/div[1]/figure[1]/div[1]/iframe[1]
• Bounding box: x = 562, y = 1116, width = 795, height = 447
• Reported by Accessibility Checker

Diagnoses

Here is how rule engines diagnose the code obsolete issue for HTML element 281 of the Clean Air Task Force (CATF) page.

1. The HTML attribute(s) "frameborder, scrolling" is deprecated for the <iframe> element in HTML 5

   Rule engine: Accessibility Checker (IBM)

   Rule: element_attribute_deprecated