Tip 15Creating an Accessible Updatable Region

We use JavaScript heavily in our web applications these days. Popular frameworks like Backbone and Ember let us build powerful single-page applications, making more-responsive user interfaces that don’t cause the page to refresh.[36][37] On these types of pages, the standard practice is to fire off some sort of visual effect to give the user a clue that something has changed on the page. However, a person using a screen reader isn’t going to be able to see any visual cues. In the past, these people would often disable JavaScript in their browsers and would then interact with a fallback solution provided by a developer, but a 2012 survey by WebAIM shows that many users of screen-reading software do ...

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