If you don't provide a CC element, then the provided chart container element receives role="status". So, it doesn't receive role="application", and NVDA doesn't realize that keystrokes should be passed through. While you can manually enter forms mode, it's not obvious to the user this should happen.
If you don't provide a CC element, then the provided chart container element receives
role="status"
. So, it doesn't receiverole="application"
, and NVDA doesn't realize that keystrokes should be passed through. While you can manually enter forms mode, it's not obvious to the user this should happen.