Test Case xhtml1_wcag2_20050630_2.3_l2_sc1_004: Content should not cause seizures due to photosensitivity

Formal Metadata

Formal Metadata
TitleContent should not cause seizures due to photosensitivity
DescriptionDocument containing proprietary marquee element.
CreatorBenToWeb (sandor.herramhof@…)
RightsCopyright BenToWeb 2004-2007
LanguageEnglish
Date2005-11-21
Statusaccepted for end user evaluation

Technologies and Features

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

Microsoft DHTML reference

Microsoft DHTML reference

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

Technical specification: http://msdn.microsoft.com/workshop/author/dhtml/reference/objects/marquee.asp.

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

This test case is intended to fail (in all available accessibility guidelines documents), because it includes content that violates the general flash threshold. This test case needs to be evaluated against a newer version of the success criterion; the version in the internal working draft of 24 February reads: "Content does not violate the general flash threshold or the red flash threshold." This test case is only for flashing content, not for valid XHTML.

Test Modes

End user.

Test Files

Test file.

TCDL Data

xhtml1_wcag2_20050630_2.3_l2_sc1_004 (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 7, column 8: http://www.w3.org/TR/2006/WD-WCAG20-20050630/#flicker-does-not-violate.

Functional Outcome

Content causes seizures due to photosensitivity.

Technical Comment

marquee element is used to present dynamic text.

Secondary Rules

Secondary Rule

The test case fails the following success criterion at line 7, column 8: URL unknown!.

Functional Outcome

Content causes seizures due to photosensitivity.

Technical Comment

marquee element is used to present dynamic text.

Secondary Rule (WCAG 2.0 - February 2005 Editor's Draft)

The test case fails the following success criterion at line 7, column 7: http://www.w3.org/WAI/GL/WCAG20/WD-WCAG20-20050211/#4.1_use-spec-document-backward-compat-violations.

Functional Outcome

The file is not valid.

Technical Comment

The marquee element is not a legal element in (X)HTML, so the file does not validate.