Lucas Silveira Kupssinskü

I would say that the main application logic is in [sample.js](https://github.com/lucaskup/SpectralData/blob/master/public/source/sample.js) and [smoth_derivative.js](https://github.com/lucaskup/SpectralData/blob/master/public/source/smoth_derivative.js) source files, although there is some app logic in [view_controller.js](https://github.com/lucaskup/SpectralData/blob/master/public/source/view_controller.js) as well. The [chart.js](https://github.com/lucaskup/SpectralData/blob/master/public/source/chart.js) is mainly for...

I was able to run the app and do the web scraping as proposed in the book using these changes. Before these changes, the web app would not load.

I have the same problem.