BindingOptions.data should allow a JSON string

[davehibshman]

Is your feature request related to a problem? Please describe.
This falls under unexpected behavior for me, but since it seems designed this way I am entering as an enhancement request.

Describe the solution you'd like
I would expect a JSON tool to accept JSON as an initial value (bindingOptions.data) .

Describe alternatives you've considered
Well setJson exists and works fine, but this seems inconsistent to me. Especially as the documentation for bindingOptions.data says it takes a URL. If that URL returns JSON and that works, then I would expect to be able to just pass a JSON string as the bindingOptions.data value as well.

Additional context
Add any other context or screenshots about the feature request here.

[william-troup]

This is planned for the next release.