Kilotest: Diagnoses of attribute value invalid violation by HTML element 1683 on GiveDirectly page

Here is how tools diagnose the attribute value invalid issue for HTML element 1683 of the GiveDirectly page.

Basics

• About the attribute value invalid issue
  • Why it matters: Item behaves improperly
  • Priority: highest
  • Related WCAG standard: 1.3.1
• About the GiveDirectly page
  • URL: https://www.givedirectly.org/
  • Tested on 2026-04-02 at 14:25
• About HTML element 1683
  • Tag name: IFRAME
  • Text: Skip to content … mmMwWLliI0fiflO&1
  • Start tag: <iframe name="__privateStripeMetricsController0380" frameborder="0" allowtransparency="true" scrolling="no" role="presentation" allow="payment *" src="https://js.stripe.com/v3/m-outer-3437aaddcdf6922d623e172c2d6f9278.html#url=https%3A%2F%2Fwww.givedirectly.org%2F&amp;title=GiveDirectly%3A%20Send%20money%20to%20people%20living%20in%20poverty&amp;referrer=&amp;muid=NA&amp;sid=NA&amp;version=6&amp;preview=false&amp;__shared_params__[version]=v3" aria-hidden="true" tabindex="-1" style="border-width: medium !important; border-style: none !important; border-color: currentcolor !important; border-image: initial !important; margin: 0px !important; padding: 0px !important; width: 1px !important; min-width: 100% !important; overflow: hidden !important; display: block !important; visibility: hidden !important; position: fixed !important; height: 1px !important; pointer-events: none !important; user-select: none !important;">
  • XPath: /html/body/iframe[2]
  • Bounding box: x = 0, y = 7215, width = 1920, height = 1

Diagnoses

1. Bad value __privateStripeMetricsController9430 for attribute name on element iframe: Browsing context name started with the underscore.

   Tool: Html Checker API (World Wide Web Consortium)

2. Bad value for attribute src on element iframe: Illegal character in fragment. [ is not allowed.

   Tool: Html Checker API (World Wide Web Consortium)