Kilotest: Diagnoses of assertive region not atomic violation by HTML element 260 on Mozilla Foundation page

Basics

About the Mozilla Foundation page

• URL: https://www.mozilla.org/en-US/
• Tested 30 days ago by job 9wj on 2026-05-03 at 04:32

About HTML element 260

• Tag name: SECTION
• Text: Pause animation … Learn about us
• Start tag: <section class="m24-c-flag" data-animation-running="true">
• XPath: /html/body/div[2]/main[1]/div[1]/section[1]
• Bounding box: x = 240, y = 57, width = 1440, height = 671

Take me there

About the assertive region not atomic issue

• Why it matters: User may be unable to get help on what content has changed
• Priority: low
• Related WCAG standard: 4.1.3

Diagnoses

Here is how tools diagnose the assertive region not atomic issue for HTML element 260 of the Mozilla Foundation page.

1. The assertive region is not atomic

   Tool: Alfa (Siteimprove)

   Rule: r54