Plenty of JavaScript demos and tutorials that you come across on the Web note that they are implemented using unobtrusive JavaScript. While that is great and should always be encouraged, some people seem to believe that unobtrusive JavaScript equals accessible JavaScript. That is not always the case.

Unobtrusive JavaScript is normally mentioned to emphasise that a script uses progressive enhancement to cater for people who use a browser without JavaScript support. But that does not mean that a script is accessible, since two key accessibility issues tend to be overlooked – keyboard navigation and screen readers.

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