Nothing shows on browser

[gitouyoung]

Type of issue: (check with "[x]")

• New feature request
• Bug
• Support request
• Documentation

Current behaviour:
I follow README guidence, but getting this error on chrome browser console:

zone.js:3243 GET http://localhost:4100/auth/.well-known/openid-configuration 500 (Internal Server Error)
error-handler.service.ts:43 Error: Uncaught (in promise): [object Undefined]
    at resolvePromise (zone.js:831)
    at resolvePromise (zone.js:788)
    at zone.js:892
    at ZoneDelegate.push../node_modules/zone.js/dist/zone.js.ZoneDelegate.invokeTask (zone.js:423)
    at Object.onInvokeTask (core.js:17290)
    at ZoneDelegate.push../node_modules/zone.js/dist/zone.js.ZoneDelegate.invokeTask (zone.js:422)
    at Zone.push../node_modules/zone.js/dist/zone.js.Zone.runTask (zone.js:195)
    at drainMicroTaskQueue (zone.js:601)
    at ZoneTask.push../node_modules/zone.js/dist/zone.js.ZoneTask.invokeTask [as invoke] (zone.js:502)
    at invokeTask (zone.js:1744)

Following requests get bad response:

• http://localhost:4100/auth/.well-known/openid-configuration
  • response with Error occured while trying to proxy to: localhost:4100/.well-known/openid-configuration
• http://localhost:4100/sockjs-node/info?t=1568771533802
  • just get nothing

Browser shows just blank after this error occurs.

Browser and version:

• Google Chrome 77.0.3865.75 on Windows 10

Node version (for build issues):

• node with v10.16.3
• npm with v6.9.0