Frames must be tested with axe-core

Rule ID: frame-tested
User Impact: Critical
WCAG: Best Practice

Compliance Data & Impact

User Impact

Disabilities Affected

  • Sighted Keyboard Users
  • Blind
  • Deafblind


  • Needs Review

WCAG Success Criteria

  • Not specified, or not applicable

Section 508 Guidelines

  • Not specified, or not applicable

Rule Description

Frames must be tested with axe-core.

Why it Matters

Without the axe-core script, it is not possible for the tool to perform violation checking on multiple levels of nested iframes.

How to Fix the Problem

Ensure iframe and frame elements contain the axe-core script.

The after - function (optional) check is the function that gets called for checks that operate on a page-level basis, to process the results from the iframe elements.

The pageLevel Ensures iframe and frame elements contain the axe-core script rule, when set to true, is only applied when the entire page is tested. Results from nodes on different frames are combined into a single result.

The Algorithm (in simple terms)

The iframes property, when set to true, tells axe to run inside iframes. This uses both frame and iframe selectors to check for the axe-core script to return a “review item” result.