When you navigate this page using VoiceOver, and use the Form Controls menu, you’ll get a list of all form controls on the page, including the Add to Cart buttons.
Quickly scanning these buttons you can tell that they provide very little value, as there is no way to tell which product each button corresponds to. How does a user know which button they want to go to and press if they don’t know which product it corresponds to?
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A popular example of Voice recognition software used to browse the Web is Dragon Naturally Speaking.
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Seeing it in action is the best way to get an idea of how it’s used. So, to quickly demonstrate how it is used on the Web, Level Access created a video demoing Dragon Naturally Speaking to fill out a form on a page. The following video is a short clip from their video which you can find and watch in full on [YouTube].
When the dragon user (in the video) wants to select a form control, he speaks out the visual text label of that control. This is one of many reasons why visual labels are important in user interfaces.
So when we have a series of Add to Cart buttons, a dragon user will speak the label of the button in order to interact with it. This is why adding text in the middle of the string makes it inaccessible. The content in the middle of the string would break the visible label. The user would be telling dragon to interact with a button whose label is not what it visually appears to be.
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So whenever you need to add additional text to a visible label, it best come after what’s visually shown.
Similarly, always ensure the accessible name (announced by screen readers) matches the visual label as much as possible. This means that you’ll also want to avoid adding a label using
aria-labelthat does not match the text label that is shown on a control.