Chapter-2/listing-2.13-and-2.14

[tiborh]

The resource from “http://localhost:3000/bower_components/jquery/dist/jquery.js” was blocked due to MIME type (“text/html”) mismatch (X-Content-Type-Options: nosniff).
localhost:3000
Loading failed for the <script> with source “http://localhost:3000/bower_components/jquery/dist/jquery.js”. localhost:3000:7:1
Uncaught ReferenceError: $ is not defined
http://localhost:3000/:9
localhost:3000:9:13

[tiborh]

root cause: bower was not found.

This one was missing:
sudo npm install -g bower

after that the following was successful:
public$ bower install

and then the rest worked.