Looking for logging into the Localhost 4200 site and are not getting the correct working link for it? In such a case, you can use the links given here by searching your desired login page in the search box. If the page is present on our website then you will get all the links related to the Localhost 4200 site. After that you can login as usual with your login credentials.
https://github.com/ember-cli/ember-cli/issues/58
https://github.com/angular/angular-cli/issues/10838
https://www.reddit.com/r/Angular2/comments/94nrjk/http_failure_response_for_httplocalhost4200login/
https://medium.freecodecamp.org/the-best-ways-to-connect-to-the-server-using-angular-cli-b0c6b699716c
https://stackoverflow.com/questions/51846422/http-localhost4200-dashboard-extra-in-url-angular-5
https://books.google.de/books?id=cOlODwAAQBAJ&pg=PA75&lpg=PA75&dq=localhost+4200+login
http://www.linux-magazin.de/ausgaben/2014/09/einfuehrung2/
https://www.youtube.com/watch?v=OjmZPPKaj6A
https://developer.okta.com/blog/2017/12/04/basic-crud-angular-and-spring-boot
https://alligator.io/angular/authentication-auth0/
http://qaru.site/questions/15149034/post-httplocalhost4200apilogin-404-not-found-angular-5-authentication
https://books.google.de/books?id=XDNyDwAAQBAJ&pg=PA222&lpg=PA222&dq=localhost+4200+login
https://plonerestapi-angular.readthedocs.io/en/latest/reference/views.html