Why deploying app to a sub-directory it is looking at the root directory for node_modules?

I have a small Angular 2.0 app. It runs fine on my machines. It uses SystemJS and I have a gulp build tool for it. The problem is when I deploy it to a sub-directory it is look at the root directory for node_modules. It should be looking at:

example.com/myapp/node_modules


but it is looking at

example.com/node_modules


instead.

tsconfig.json:

{
"compilerOptions": {
"target": "es5",
"module": "commonjs",
"moduleResolution": "node",?
"sourceMap": true,
"emitDecoratorMetadata": true,
"experimentalDecorators": true,
"removeComments": false,
"noImplicitAny": true,
"suppressImplicitAnyIndexErrors": true
}
}


systemjs.config.js:

(function (global) {
System.config({
paths: {
// paths serve as alias
'npm:': 'node_modules/'
},
// map tells the System loader where to look for things
map: {
// our app is within the app folder
app: 'app',

// angular bundles
'@angular/core': 'npmangular/core/bundles/core.umd.js',
'@angular/common': 'npmangular/common/bundles/common.umd.js',
'@angular/compiler': 'npmangular/compiler/bundles/compiler.umd.js',
'@angular/platform-browser': 'npmangular/platform-browser/bundles/platform-browser.umd.js',
'@angular/platform-browser-dynamic': 'npmangular/platform-browser-dynamic/bundles/platform-browser-dynamic.umd.js',
'@angular/http': 'npmangular/http/bundles/http.umd.js',
'@angular/router': 'npmangular/router/bundles/router.umd.js',
'@angular/forms': 'npmangular/forms/bundles/forms.umd.js',

// other libraries
'rxjs': 'npm:rxjs'
},
// packages tells the System loader how to load when no filename and/or no extension
packages: {
app: {
main: './main.js',
defaultExtension: 'js'
},
rxjs: {
defaultExtension: 'js'
}
}
});
})(this);


gulpfile.js:

const gulp = require('gulp');
const del = require('del');
const typescript = require('gulp-typescript');
const tscConfig = require('./tsconfig.json');
const sourcemaps = require('gulp-sourcemaps');

// clean the contents of the distribution directory
gulp.task('clean', function () {
return del('dist/**/*');
});

// TypeScript compile
gulp.task('compile', ['clean', 'copy:libs', 'copy:assets'], function () {
return gulp
.src('app/**/*.ts')
.pipe(sourcemaps.init())
.pipe(typescript(tscConfig.compilerOptions))
.pipe(sourcemaps.write('.'))
.pipe(gulp.dest('dist/app'));
});

// copy dependencies
gulp.task('copy:libs', ['clean'], function() {
return gulp.src([
'node_modules/angular2/bundles/angular2-polyfills.js',
'node_modules/systemjs/dist/system.src.js',
'node_modules/rxjs/bundles/Rx.js',
'node_modules/angular2/bundles/angular2.dev.js',
'node_modules/angular2/bundles/router.dev.js',
'node_modules/**/*.js',
'node_modules/**/*.css'
])
.pipe(gulp.dest('dist/node_modules'))
});

// copy static assets - i.e. non TypeScript compiled source
gulp.task('copy:assets', ['clean'], function() {
return gulp.src(['app/**/*', 'index.html', 'systemjs.config.js', '!app/**/*.ts'], { base : './' })
.pipe(gulp.dest('dist'))
});

gulp.task('build', ['compile']);
gulp.task('default', ['build']);

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