Kilotest: Diagnoses of ID not unique violation by HTML element 63 on Freedom of the Press Foundation page

Basics

About the Freedom of the Press Foundation page

• URL: https://freedom.press/
• Tested 38 days ago by job mwy on 2026-04-24 at 21:54

About HTML element 63

• Tag name: mask
• Text: [not applicable]
• Start tag: <mask id="mask0_2562_1259" style="mask-type:alpha" maskUnits="userSpaceOnUse" x="0" y="0" width="18" height="18">
• XPath: /html/body/div[1]/header[1]/div[1]/div[1]/nav[1]/ul[1]/li[1]/button[1]/svg[1]/mask[1]
• 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 63 of the Freedom of the Press Foundation page.

1. The first occurrence of ID mask0_2562_1259 was here.

   Tool: Html Checker API (World Wide Web Consortium)