Kilotest: Diagnoses of select element invalid violation by HTML element 644 on Mozilla Foundation page

Basics

About the Mozilla Foundation page

• URL: https://www.mozilla.org/en-US/
• Tested 38 days ago by job tyn on 2026-04-24 at 19:48

About HTML element 644

• Tag name: OPTION
• Text: Afghanistan
• Start tag: <option value="af">
• XPath: [not obtained]
• Bounding box: x = 0, y = 0, width = 0, height = 0

Take me there

About the select element invalid issue

• Why it matters: User cannot properly select among options
• Priority: highest
• Related WCAG standard: 4.1.2

Diagnoses

Here is how tools diagnose the select element invalid issue for HTML element 644 of the Mozilla Foundation page.

1. The first child option element of a select element with a required attribute, and without a multiple attribute, and without a size attribute whose value is greater than 1, must have either an empty value attribute, or must have no text content. Consider either adding a placeholder option label, or adding a size attribute with a value equal to the number of option elements.

   Tool: Html Checker API (World Wide Web Consortium)