Using noembed with embed

Important Information about Techniques

See Understanding Techniques for WCAG Success Criteria for important information about the usage of these informative techniques and how they relate to the normative WCAG 2.1 success criteria. The Applicability section explains the scope of the technique, and the presence of techniques for a specific technology does not imply that the technology can be used in all situations to create content that meets WCAG 2.1.

Applicability

Documents that load plugins with the embed element.

This technique relates to:

Description

The objective of this technique is to provide alternative content for the embed element in a noembed element. The noembed is rendered only if the embed is not supported. While it can be positioned anywhere on the page, it is a good idea to include it as a child element of embed so that it is clear to assistive technologies that a text alternative is associated with the embed element it describes.

Examples

Example 1: noembed is provided inside an embed

<embed src="../movies/history_of_rome.mov"
  height="60" width="144" autostart="false">
  <noembed>
    <a href="../transcripts/transcript_history_rome.htm">Transcript of "The history of Rome"</a>
  </noembed>
</embed>

Example 2: noembed is provided beside an embed

<embed src="moviename.swf" width="100" height="80"
  pluginspage="http://example.com/shockwave/download/" />
<noembed>
  <img alt="Still from Movie" src="moviename.gif" 
    width="100" height="80" />
</noembed>;

Tests

Procedure

  1. Check if embed element has a child noembed element
  2. Check if embed element has a noembed element that immediately follows it.

Expected Results

  • #1 is true or #2 is true