Angular2 Typescript app throws 404 on components when js extension not specified

Question

I just started to play around with Angular2, and ran into a weird component file extension problem:

Let\'s use the 5 minutes quickstart demo from angular.io (I\'ll repro

Answer 1

after trying many other solutions suggested by others, I found out it can case by dots in filenames and these two solutions worked for me. first:

defaultJSExtensions: true,

but defaultJSExtensions is a property that will be deprecated in future and second:

packages: {
            '.': {
                defaultExtension: 'js'
            }
        }