Serving multiple files under a single URL

FileHandler can serve multiple files under a single URL.

For example, if you use jQuery, Bootstrap and D3 in your project, you can create a single URL called libraries.js that concatenates all of these files into one. See example:

pattern: /$YAMLURL/libraries.js
handler: FileHandler
        - $YAMLPATH/bower_components/jquery/dist/jquery.min.js
        - $YAMLPATH/bower_components/bootstrap/dist/bootstrap.min.js
        - $YAMLPATH/bower_components/d3/d3.min.js
        Content-Type: application/json

This is also try of CSS files, CSV files, and any other file formats that can be concatenated.