Web Development
Web Developer Guidelines
Visual Design Recommendations

Checkpoint 1.1 - JavaScript

All JavaScript is accompanied by the <noscript> element containing the equivalent content or functionality provided by the JavaScript

WCAG 1.0 Priority 1

WCAG Guideline 6. Ensure that pages featuring new technologies transform gracefully.

The <noscript> element encloses content that should be displayed when a script is not executed. This content is also displayed in browsers that do not support the script or in browsers which are configured not to run scripts.

Requirement

All JavaScript must also be accompanied by the <noscript> element that contains the equivalent content or functionality provided by the JavaScript

Recommendation

If a browser supports scripting, it will not display the text in the noscript element.

Browsers that do not recognize the <script> element will display the element content as text on the page. To prevent browsers from doing this, enclose the content in HTML comment tags.

      <script type="text/javascript">
      <!--
         document.write("Hello World!")
      //-->
      </script>

Checking Tool

View the source code of the page, locate all <script> element and verify that they are accompanied by an appropriate <noscript> element

Information Source

The original source of this information is located on the W3C web site  (www.w3.org/TR/WCAG10-TECHS/#tech-scripts)

 

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