Reese Davis Reese Davis - 1 month ago 21
TypeScript Question

systemjs loader does not include .js while loading angular internal script files by import

In my angular2 application I am trying to load typescript compiled javascript rom different server. when when I try to load the javascript file without .js extension it makes a rest call without .js extension and gives 404 error.

error
VM9887:1274 GET http://localhost:9099/OfferFinder7oct/app/app.module 404 (Not Found)

in detail the error is the systemjs is trying to load http://localhost:3000/app/app.module as "./app.module" but unable to reach http://localhost:3000/app/main.js




System.import('app').catch(function(err){ console.error(err); });

//system.config.js
/**
* System configuration for Angular samples
* Adjust as necessary for your application needs.
*/
(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': 'npm:@angular/core/bundles/core.umd.js',
'@angular/common': 'npm:@angular/common/bundles/common.umd.js',
'@angular/compiler': 'npm:@angular/compiler/bundles/compiler.umd.js',
'@angular/platform-browser': 'npm:@angular/platform-browser/bundles/platform-browser.umd.js',
'@angular/platform-browser-dynamic': 'npm:@angular/platform-browser-dynamic/bundles/platform-browser-dynamic.umd.js',
'@angular/http': 'npm:@angular/http/bundles/http.umd.js',
'@angular/router': 'npm:@angular/router/bundles/router.umd.js',
'@angular/forms': 'npm:@angular/forms/bundles/forms.umd.js',
'@angular/upgrade': 'npm:@angular/upgrade/bundles/upgrade.umd.js',

// other libraries
'rxjs': 'npm:rxjs',
'angular-in-memory-web-api': 'npm:angular-in-memory-web-api',
},
// 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'
},
'angular-in-memory-web-api': {
main: './index.js',
defaultExtension: 'js'
}
}
});
})(this);

Answer

add defaultExtension: 'js' to your configuration main section. Your configuration does not understand default extension for the file without any extension.

New configuration would look like this

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