systemjs - "system.import" fails if file contains "use strict"

Question

I would like to use systemjs as a module loader in a new project. Everything works fine until I add 'use strict'; to the top of the file which should be loaded.

script.js

System.import('loadme.js').then(function(m) {
    console.log('loaded');
    console.log(app);
})

loadme.js

'use strict'; //if I remove this line the import works fine
var app={
  version:'0.0.0',
  name:'just a test'
};

I have a plunkr here https://plnkr.co/edit/bhSTkcZw9XaKszXuIYZQ

Answer 1

It's expecting a module to be passed back with the data, and not a global variable (see documentation on strict mode globals).

Here's something you could do, if you just want it to work: https://plnkr.co/edit/pVKqfGkcCagyLixtmziB?p=preview

'use strict';

var app = {
  version: '0.0.0',
  name: 'just a test'
};

module.exports = app;

/*
  You can also do

  module.exports = {
    app: app,
    foo: foo,
    bar: bar
    .
    .
    .
  }

  and then in your script.js have module.app, module.foo

*/