The c6e project is for node.js command mode, not for web pages.
$ npm install -g electron
$ npm install -g c6e
$ git clone https://github.com/ccckmit/c6demo.git
$ cd c6demo
$ npm install
$ c6e demo/chartDemo.js
Source code : chartDemo.js
$ c6e demo/imageDemo.js
Source code : imageDemo.js