[Accessibility] Floating action button not accessible by keyboard interaction

[gselderslaghs]

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• I have read the CONTRIBUTING document and my issue is following the guidelines.
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Context

When using the Floating action button component, the element does not seem to be intractable by keyboard

Current Behavior

Button is not tabbable/focusable by keyboard interaction

Codepen example

Expected behavior

Component should be accessible by mouse and keyboard input

Possible Solutions or Causes

Implement the necessary functional attributes on initialization in order to make button tabbable/focusable by keyboard interaction

Your Environment

• Version used: 2.1.1