Kilotest: Diagnoses of attribute value invalid violation by HTML element 131 on Off-ramp NYC page

Basics

About the page

• URL: https://www.offramp.nyc/
• Tested 8 days ago on 2026-10-02 at 17:16 by job 261002T1715-9f8
• Summary of results:
  • Rule engines:
    • Called: 12
    • Were able to test: 12
    • Reported any rule violations: 11
  • Violations: 962
  • Violators: 296
  • Issues: 43
• 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: 5
• Violators: 5

About the violator

• Tag name: symbol
• Text: [not applicable]
• Start tag: <symbol id="closedArrowHeadFilled" viewBox="0 0 22 22" xmlns="http://www.w3.org/2000/symbol">
• XPath: /html/body/div[1]/header[1]/svg[1]/symbol[10]
• Bounding box: [not obtained]
• Reported by Html Checker API

Diagnoses

Here is how rule engines diagnose the attribute value invalid issue for HTML element 131 of the Off-ramp NYC page.

1. Bad value http://www.w3.org/2000/symbol for the attribute xmlns (only http://www.w3.org/2000/svg permitted here).

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