accessibility-checker-engine
Version:
An automated accessibility checking engine for use by other tools
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<title>download_keyboard_controllable - Accessibility Checker Help</title>
<script>
RULE_MESSAGES = {"en-US":{"Pass_0":"Rule Passed","Manual_1":"Verify that the file download mechanism does not cause a keyboard trap","group":"File download mechanisms should be keyboard-operable and preserve page focus location"}};
RULE_ID = "download_keyboard_controllable"
</script>
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<link rel="icon" href="https://ibm.com/able/favicon-32x32.png" type="image/png">
<link rel="icon" href="https://ibm.com/able/favicon.svg" type="image/svg+xml">
<link rel="stylesheet" href="../common/help.css" />
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<mark-down><script type="text/plain">
### Why is this important?
A keyboard trap is a situation where a keyboard-only user is unable to get out of a content area.
For example, if a file download mechanism is implemented with a dialog box, this moves the keyboard focus away from the web page.
If keyboard focus is not handled correctly, it may inadvertently trap keyboard-only users in the dialog.
In addition, when the dialog is closed, if keyboard focus is not returned to the user's original position on the web page (the 'point of regard'), they may have to spend significant effort navigating back to where they were on the page.
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### What to do
* Manually test by using the Tab key to enter and exit the file download mechanism
* **And**, when exiting the download mechanism, ensure the keyboard focus returns to the same point on the web page where the download was initiated
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### About this requirement
* [IBM 2.1.2 No Keyboard Trap](https://www.ibm.com/able/requirements/requirements/#2_1_2)
### Who does this affect?
* People who rely on keyboard control
* People using a screen reader, including blind, low vision, and neurodivergent people
* People who physically cannot use a pointing device
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