http://localhost:4200/ login button doesn't work #9943

1 Answer(s)

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  AI-Bot created 12 hours ago

  Support Team ABP Agent

  • In ABP Angular microservice solutions, clicking the "Login" button redirects to the AuthServer (IdentityServer/OpenIddict) for authentication. If nothing happens or you see a blank page, this is usually due to a misconfiguration in the authentication or environment settings.

  Checklist to resolve the login button issue:

  1. Check AuthServer is Running:

     • Ensure the AuthServer (or IdentityServer) project is running and accessible at the correct URL/port.

  2. Correct Redirect URLs:

     • In your appsettings.json (AuthServer and Angular), make sure the App:SelfUrl and AuthServer:Authority are set to the correct URLs (e.g., http://localhost:4200 for Angular, and the actual AuthServer URL).
     • The Angular app's environment.ts should have oAuthConfig.issuer set to the AuthServer URL.

  3. CORS Configuration:

     • The AuthServer must allow CORS for the Angular app's URL. In appsettings.json of AuthServer, add the Angular URL to CorsOrigins:

  "App": {
         "CorsOrigins": "http://localhost:4200"
       }
  

  4. Hosts File (if using custom domains):

     • If you use custom domains (e.g., angular.localtest.me), ensure your hosts file and all URLs match.

  5. Browser Console Errors:

     • Open the browser console (F12) and check for CORS, 404, or network errors when clicking "Login".

  6. Rebuild and Restart:

     • Stop all services, run abp install-libs, rebuild, and restart all backend and frontend projects.

  7. Check OAuth Configuration in Angular:

     • In environment.ts:

  oAuthConfig: {
         issuer: 'https://localhost:44368', // AuthServer URL
         clientId: 'AbpSolution3_App',      // Should match your app registration
         scope: 'offline_access openid profile role email phone'
       }
  

  8. Check for Social Login Issues:
     • If you enabled social login, ensure all provider settings (Google, Facebook, etc.) are correct and registered with the right redirect URIs.

  If you see a blank page or nothing happens:

  • It usually means the Angular app cannot reach the AuthServer, or the OAuth config is incorrect.

  References

  • How can I edit the login screen when using Angular
  • ABP Angular Quick Start

  If you follow these steps and the login button still does not work, please check the browser console for errors and verify that both the Angular and AuthServer URLs are correct and accessible.

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