When using the bootbox prompt component in an inline flow, it may be that the input is optional and clicking the Cancel button should stop the flow. At the moment, if you make the box required or use a condition to check for the prompt value, that can check if something has been entered, but there is no way, currently, to exit the flow if the user clicks cancel - the flow continues
i.e.
User clicks button > prompt (optional) > user chooses not to proceed so clicks cancel = the flow will continue anyway
There needs to be a differentiation between cancel and proceed in this situation.