Kilotest: Diagnoses of ID not unique violation by HTML element 2523 on Northwest Natural Gas page

Basics

About the Northwest Natural Gas page

• URL: https://www.nwnatural.com/
• Tested 7 days ago by job wta on 2026-05-26 at 03:09

About HTML element 2523

• Tag name: path
• Text: [not applicable]
• Start tag: <path id="Rectangle-13" class="st0" d="M16,11.5h-6c-0.4,0-0.8,0.2-1.1,0.4c-0.3,0.3-0.4,0.6-0.4,1.1v0.5h9V13 c0-0.4-0.2-0.8-0.4-1.1C16.8,11.7,16.4,11.5,16,11.5z">
• XPath: /html/body/svg[1]/defs[1]/symbol[155]/g[1]/path[2]
• Bounding box: x = 0, y = 0, width = 0, height = 0

About the ID not unique issue

• Why it matters: User may be pointed to the wrong item
• Priority: highest
• Related WCAG standard: 4.1.1

Diagnoses

Here is how tools diagnose the ID not unique issue for HTML element 2523 of the Northwest Natural Gas page.

1. Duplicate id attribute value "Rectangle-13" found on the web page.

   Tool: HTML CodeSniffer (Squiz Labs)

   Rule: E-WCAG2AAA.Principle4.Guideline4_1.4_1_1.F77

2. [failed]

   Tool: QualWeb (University of Lisbon)

   Rule: QW-BP30