I get the exact same error when I use that URL (i.e. a trailing slash without the parameter).
Error: (SystemJS) Error: XHR error (404 Not Found) loading http://localhost:8088/homedetail/app/app.js at XMLHttpRequest.wrapFn [as _onreadystatechange] (http://localhost:8088/node_modules/zone.js/dist/zone.js:769:30) at ZoneDelegate.invokeTask (http://localhost:8088/node_modules/zone.js/dist/zone.js:356:38) at Zone.runTask (http://localhost:8088/node_modules/zone.js/dist/zone.js:256:48) at XMLHttpRequest.ZoneTask.invoke (http://localhost:8088/node_modules/zone.js/dist/zone.js:423:34) Error loading http://localhost:8088/homedetail/app/app.js -- You received this message because you are subscribed to the Google Groups "AngularJS" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/angular. For more options, visit https://groups.google.com/d/optout.
