Kilotest: Diagnoses of attribute value invalid violation by HTML element 88 on Prometheus page

Here is how tools diagnose the attribute value invalid issue for HTML element 88 of the Prometheus page.

Basics

• About the attribute value invalid issue
  • Why it matters: Item behaves improperly
  • Priority: highest
  • Related WCAG standard: 1.3.1
• About the Prometheus page
  • URL: https://www.joinprometheus.org/
  • Tested on 2026-04-07 at 19:19
• About HTML element 88
  • Tag name: SCRIPT
  • Text: [not applicable]
  • Start tag: <script type="wix/htmlEmbeds" id="pageHtmlEmbeds.bodyStart end">
  • XPath: /html/body/script[3]
  • Bounding box: x = 0, y = 0, width = 0, height = 0

Diagnoses

1. Bad value pageHtmlEmbeds.bodyStart end for attribute id on element script: An ID must not contain whitespace.

   Tool: Html Checker API (World Wide Web Consortium)