$ cd client
$ npm unlink webpack
$ yarn examples:build && yarn build
Note: if asked about the installation of webpack during Yarn build, type webpack-cli
$ cd server
$ gradle build
$ cd server
$ gradle jettyRun
Browse to http://localhost:8080/examples/crossflow/crossflow-server.html
The above screenshot shows an error related to a resource that could not be found, this is equal to the output produced by the demo running on the typefox server (screenshot below). Therefore, it should not be the cause of the missing visualization.