Test Case xhtml1_wcag2_20050630_2.3_l1_sc1_011: Avoidance of content that could cause seizures due to photosensitivity

Formal Metadata

Formal Metadata
TitleAvoidance of content that could cause seizures due to photosensitivity
DescriptionDocument containing one image that links to a page with content that violates the general flash threshold. Warning text presented in the alt attribute of the image.
CreatorBenToWeb (sandor.herramhof@…)
RightsCopyright BenToWeb 2004-2007
LanguageEnglish
Date2005-08-31
Statusdraft

Technologies and Features

Technologies are markup languages or data formats. If the technology is a markup language, “features” refers to elements and attributes.

XHTML™ 1.0 The Extensible HyperText Markup Language (Second Edition)

XHTML™ 1.0 The Extensible HyperText Markup Language (Second Edition)

Feature: img (namespace: http://www.w3.org/1999/xhtml) .

Technical specification: Including an image .

ITC Guidance Note for Licensees on Flashing Images and Regular Patterns in Television

ITC Guidance Note for Licensees on Flashing Images and Regular Patterns in Television

Test Data

Purpose

The document is intended to fail (in all available accessibility guidelines documents), because users are not warned adequately to avoid content that violates the general flash threshold.

Test Modes

Test Files

The test files must be inspected in the order defined below.

  1. Test file 1
  2. Test file 2

TCDL Data

xhtml1_wcag2_20050630_2.3_l1_sc1_011 (XML).

Rules

“Rules” refer to success criteria in WCAG 2.0, checkpoints in WCAG 1.0 and similar requirements.

Primary Rules

The test case fails the following success criterion at line 10, column 6: http://www.w3.org/TR/2006/WD-WCAG20-20050630/#flicker-rate-and-warning.

Functional Outcome

alt-attribute is not appropriate for warnings of harming content.

Technical Comment

alt-attribute in the img element is used to place the warnings.

Secondary Rules

Secondary Rule

The test case fails the following success criterion at line 10, column 6: URL unknown!.

Functional Outcome

alt-attribute is not appropriate for warnings of harming content.

Technical Comment

alt-attribute in the img element is used to place the warnings.