• Success Criterion 3.3.3
  • Conformance level AA

Rejected File Upload With No Stated Size or Type Limits

3.3.3 — Error Suggestion

Scenario

Setting

A webinar platform's registration form

What’s wrong

File upload rejected without stating allowed types/size.

Example

Picture a webinar platform's registration form: file upload rejected without stating allowed types/size.

Why it matters

People with cognitive disabilities and anyone stalled by vague validation messages. In this case (a webinar platform's registration form), they can't complete the form at all.

How to test

Upload a rejected file: if the message doesn't state allowed types/size, it fails.

How to fix

The error message must tell the user how to fix the problem — the expected format, range, or valid options.

Outcome

Once corrected, a webinar platform's registration form lets them complete the form without guessing.

Who is affected

People with cognitive disabilities and anyone stalled by vague validation messages.

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