We know that we can use the GPL version of Webix in a commercial app, as long as the client source code is released on request. The server source code can be kept closed.
But what happens if an MIT-licensed or Apache-licensed open source app uses Webix? Can it keep its original license?
This is important for Meteor apps now that the Meteor Webix integration is available, because the vast majority of open-source Meteor apps are published under the MIT license.