Test Case xhtml1_wcag2_20050630_2.3_l2_sc1_013: Content should not cause seizures due to photosensitivity

Formal Metadata

Formal Metadata
TitleContent should not cause seizures due to photosensitivity
DescriptionA page with an applet element that includes a flashing applet. The applet flashes several times per second. Below the applet is an instruction that tells the user that clicking on the applet will stop the flashing (and this mechanism works). (This test uses the same applet as xhtml1_wcag2_20050630_2.3_l2_sc1_005 but embeds it in an applet element instead of an object element. The applet element is more widely supported.)
CreatorBenToWeb (Christophe.Strobbe@…)
RightsCopyright BenToWeb 2004-2007
LanguageEnglish
Date2005-11-21
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: object (namespace: http://www.w3.org/1999/xhtml) .

Technical specification: Including an applet: The applet element .

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 because it contains an object that can cause seizures due to photosensitivity.

Test Modes

Test Files

Test file.

TCDL Data

xhtml1_wcag2_20050630_2.3_l2_sc1_013 (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 8, column 6: http://www.w3.org/TR/2006/WD-WCAG20-20050630/#flicker-does-not-violate.

Functional Outcome

Content potentially causes seizures due to photosensitivity.

Technical Comment

object element includes flickering Applet.

Secondary Rules

Secondary Rule

The test case fails the following success criterion at line 8, column 6: URL unknown!.

Functional Outcome

Content potentially causes seizures due to photosensitivity.

Technical Comment

object element includes flickering Applet. Apparently, Mozilla (1.7.3), Firefox (1.0) and Internet Explorer (6.0) don't load the applet; Opera 8 seems to load an applet but shows a grey area instead of the content.