system.config.js

console.log('Using global system config (loaded from /system.config.js)');

var RUNTIME_FILE = 'bootstrap.runtime.ts';
var AOT_FILE = 'bootstrap.aot.ts';

function parseQS(searchStr) {
    var values = {};
    searchStr.split('&').forEach(function(token) {
        var tuple = token.split('=');
        values[tuple[0]] = tuple[1] || true;
    });
    return values;
}

var searchValue = window.location.search;
var qsValues = parseQS(searchValue.length ? searchValue.substr(1) : "");

var mainFile = RUNTIME_FILE;
var href = window.location.href;
if (qsValues.aot) {
    mainFile = AOT_FILE;
}

var mappings = {
    index: '.',
    '@angular': './@angular',
    'rxjs': 'https://npmcdn.com/rxjs@5.0.0-beta.6'
};

var packages = {
    '@angular/core': {main: 'index.js', defaultExtension: 'js'},
    '@angular/compiler': {main: 'index.js', defaultExtension: 'js'},
    '@angular/router': {main: 'index.js', defaultExtension: 'js'},
    '@angular/common': {main: 'index.js', defaultExtension: 'js'},
    '@angular/forms': {main: 'index.js', defaultExtension: 'js'},
    '@angular/platform-browser': {main: 'index.js', defaultExtension: 'js'},
    '@angular/platform-browser-dynamic': {main: 'index.js', defaultExtension: 'js'},
    rxjs: {
        defaultExtension: 'js'
    },
    index: {
        main: mainFile,
        defaultExtension: 'ts'
    }
};

if (qsValues.bundle) {
    packages['@angular/core']['main'] = 'bundles/core.umd.js';
    packages['@angular/compiler']['main'] = 'bundles/compiler.umd.js';
    packages['@angular/router']['main'] = 'bundles/router.umd.js';
    packages['@angular/common']['main'] = 'bundles/common.umd.js';
    packages['@angular/forms']['main'] = 'bundles/forms.umd.js';
    packages['@angular/platform-browser']['main'] = 'bundles/platform-browser.umd.js';
    packages['@angular/platform-browser-dynamic']['main'] = 'bundles/platform-browser-dynamic.umd.js';
}

System.config({
    transpiler: 'typescript',
    typescriptOptions: {
        emitDecoratorMetadata: true
    },
    map: mappings,
    packages: packages
});