Test Case sc3.2.5_l3_052: Change of user agent when a link loses the focus (onblur) - with warning

Formal Metadata

Formal Metadata
TitleChange of user agent when a link loses the focus (onblur) - with warning
DescriptionDocument containing a link; when the user moves focus from the link a MIDI file is loaded with an external player. The user is warned about this behaviour in the text before the link.
CreatorBenToWeb (johannes.koch@…)
RightsCopyright BenToWeb 2005-2007
LanguageEnglish
Date2007-01-12
Statusvalidated

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

Technical specification: http://www.w3.org/TR/1999/REC-html401-19991224/interact/scripts.html#adef-onblur.

Standard ECMA-262 : ECMAScript Language Specification, 3rd edition (December 1999)

Standard ECMA-262 : ECMAScript Language Specification, 3rd edition (December 1999)

Test Data

Purpose

The test is intended to pass because the change of user agent was expected.

Expert Guidance

The browser must be JavaScript-enabled.

Test Modes

Accessibility expert.

Test Files

Test file.

TCDL Data

sc3.2.5_l3_052 (XML).

Rules

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

Primary Rules

The test case passes the following success criterion: http://www.w3.org/TR/2006/WD-WCAG20-20060427/guidelines.html#consistent-behavior-no-extreme-changes-context.

Functional Outcome

The user initiated the change of context, and expected it to be connected to the user's action.

Technical Comment

This test case uses the same code as sc3.2.5_l3_025, but adds a warning.

The actual behaviour may depend on the user agent. On Windows XP, the following behaviour was observed. In Internet Explorer, the audio file was loaded in an instance of Windows Media Player. In Firefox 2.0 and SeaMonkey 1.1, audio file was played by QuickTime (in the same tab as the referencing file). In Opera 9.0, it is not clear how the behaviour should be explained: when pressing a (to cycle through links), the page becomes blank but the URL does not change; no music starts playing.

Secondary Rules

Secondary Rule (WCAG 2.0 - June 2005 Working Draft)

The test case passes the following success criterion: http://www.w3.org/TR/2006/WD-WCAG20-20050630/#consistent-behavior-no-extreme-changes-context.

Functional Outcome

The user initiated the change of context.

Technical Comment

The user moved the focus to another link, which initiated a change of user agent.