Kilotest: Diagnoses of ID not unique violation by HTML element 636 on Translation Commons volunteer page

Basics

About the page

• URL: https://translationcommons.org/web-volunteer-page/
• Tested 2 days ago on 2026-10-08 at 04:07 by job 261008T0404-s6j
• Summary of results:
  • Rule engines:
    • Called: 12
    • Were able to test: 12
    • Reported any rule violations: 12
  • Violations: 1648
  • Violators: 549
  • Issues: 54
• Download the full technical report (JSON)

About the issue

• Why it matters: User may be pointed to the wrong item
• Priority: highest
• Related WCAG standard: 4.1
• Reported by 4 rule engines (ASLint + Html Checker + HTML CodeSniffer + QualWeb)
• Violations: 22
• Violators: 16

About the violator

• Tag name: mask
• Text: [not applicable]
• Start tag: <mask id="mask0_1354_4839" style="mask-type:alpha" maskUnits="userSpaceOnUse" x="0" y="0" width="40" height="41">
• XPath: [not obtained]
• Bounding box: x = 0, y = 0, width = 0, height = 0
• Reported by Html Checker + HTML CodeSniffer + QualWeb

Diagnoses

Here is how rule engines diagnose the ID not unique issue for HTML element 636 of the Translation Commons volunteer page.

1. Duplicate id attribute value "mask0_1354_4839" found on the web page.

   Rule engine: HTML CodeSniffer (Squiz Labs)

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

2. Duplicate ID mask0_1354_4839.

   Rule engine: Html Checker (World Wide Web Consortium)

3. [failed]

   Rule engine: QualWeb (University of Lisbon)

   Rule: QW-BP30