Kilotest: Diagnoses of attribute value invalid violation by HTML element 520 on Farm Sanctuary page

Basics

About the page

• URL: https://www.farmsanctuary.org/home
• Tested 3 days ago on 2026-10-07 at 21:18 by job 261007T2112-q39
• Summary of results:
  • Rule engines:
    • Called: 12
    • Were able to test: 12
    • Reported any rule violations: 11
  • Violations: 1022
  • Violators: 458
  • Issues: 55
• 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: 1
• Violators: 1

About the violator

• Tag name: IFRAME
• Text: [not applicable]
• Start tag: <iframe id="xX0rStLHltw" class="youtube-video" width="640" height="390" title="The Power of Sanctuary" src="https://www.youtube.com/embed/xX0rStLHltw?modestbranding=1&amp;origin=https://www.farmsanctuary.org&amp;playsinline=1&amp;rel=0&amp;enablejsapi=1" allowfullscreen="1" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" frameborder="0">
• XPath: /html/body/div[1]/main[1]/div[1]/section[2]/div[1]/div[2]/div[1]/div[1]/iframe[1]
• Bounding box: x = 456, y = 1557, width = 1008, height = 567
• Reported by Html Checker API

Diagnoses

Here is how rule engines diagnose the attribute value invalid issue for HTML element 520 of the Farm Sanctuary page.

1. Bad value 1 for attribute allowfullscreen on element iframe.

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