Kilotest: Diagnoses of attribute value invalid violation by HTML element 1365 on Prometheus page

Basics

About the Prometheus page

• URL: https://www.joinprometheus.org/
• Tested 29 days ago by job hzk on 2026-05-03 at 17:00

About HTML element 1365

• Tag name: A
• Text: [not applicable]
• Start tag: <a data-testid="linkElement" href="mailto:info@joinprometheus.org?subject=Prometheus Website Contact" target="_self" class="aeyn4z">
• XPath: [not obtained]
• Bounding box: x = 1399, y = 3429, width = 35, height = 35

About the attribute value invalid issue

• Why it matters: Item behaves improperly
• Priority: highest
• Related WCAG standard: 1.3.1

Diagnoses

Here is how tools diagnose the attribute value invalid issue for HTML element 1365 of the Prometheus page.

1. Bad value mailto:info@joinprometheus.org?subject=Prometheus Website Contact for attribute href on element a: Illegal character in query. Space is not allowed.

   Tool: Html Checker API (World Wide Web Consortium)