Kilotest: Diagnoses of attribute value invalid
violation by HTML element 24 on Prometheus page
Here is how tools diagnose the attribute value invalid
issue for HTML element 24 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
- URL:
- About HTML element 24
- Tag name:
SCRIPT - Text: [not applicable]
- Start tag:
<script type="wix/htmlEmbeds" id="pageHtmlEmbeds.head start"> - XPath:
/html/head[1]/script[12] - Bounding box: x = 0, y = 0, width = 0, height = 0
- Tag name:
Diagnoses
- Bad value pageHtmlEmbeds.head start for attribute id on element script: An ID must not contain whitespace.
Tool: Html Checker API (World Wide Web Consortium)