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WC3 2.0 questions

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From: Sean Murphy
Date: Jul 28, 2016 1:46AM

All,

I have two queries in relation to web behaviour and how it fits into WCAG.

1. Person presses a button to perform an action. An error message appears notifying the user visually that the feature failed. The screen reader user is not being notified of the change. Is this 3.3.1, 3.3.3, 3.3.4? Hope I got those WCAG SC correct. :-)

In relation to applications that update input field like edit fields after someone presses a button. For example an calculator or dial-pad. If the screen reader is not being notified of the updated edit field. I would like to know the WCAG that this fails.

Focus landing on frame or iframe is not best practise? If so, which WCAG does this fail?

Sean