Kilotest: Diagnoses of meta invalid violation by HTML element 29 on Next Generation Playground page

Basics

About the Next Generation Playground page

• URL: https://www.playnextgeneration.com/
• Tested 14 days ago by job cg9 on 2026-05-18 at 15:01

About HTML element 29

• Tag name: META
• Text: [not applicable]
• Start tag: <meta http-equiv="X-Wix-Application-Instance-Id" content="4f2252df-9ac1-4357-b41a-f3b99f26d2aa">
• XPath: /html/head[1]/meta[8]
• Bounding box: x = 0, y = 0, width = 0, height = 0

About the meta invalid issue

• Why it matters: Document fails to include needed data
• Priority: high
• Related WCAG standard: 1.3.1

Diagnoses

Here is how tools diagnose the meta invalid issue for HTML element 29 of the Next Generation Playground page.

1. Bad value X-Wix-Application-Instance-Id for attribute http-equiv on element meta.

   Tool: Html Checker API (World Wide Web Consortium)