6.3 Ensure that pages are usable when scripts, applets, or other programmatic objects are turned off or not supported.
Checkpoint
6.3 Ensure that pages are usable when scripts, applets, or other programmatic objects are turned off or not supported. If this is not possible, provide equivalent information on an alternative accessible page.
Making pages usable when programmatic objects are turned off
Information and navigation provided via a scripting language or applet must still be available when the scripting language or applet is not supported.
For example,
- Important content may be provided via 'rollover images', i.e. information is made visible when a user moves the mouse pointer over an image. This information should be made available in an alternative way when scripting is not supported or it is turned off.
- Content provided via Flash, or PDF documents - alternative accessible should be provided.
- Avoid creating content 'on-the-fly' locally if that content is no longer available when scripting is disabled or not supported, i.e. dynamic navigation menus which are dependent on the use of Javascript.
Checkpoint
6.3 Ensure that pages are usable when scripts, applets, or other programmatic objects are turned off or not supported. If this is not possible, provide equivalent information on an alternative accessible page.
Reading material
- Accessibility issues with Javascript
- Jim Thatcher.com: Scripts and Applets
- WAI Web Content Accessibility Curriculum
- WebAim: JavaScript and Dynamic HTML