web page is loading with empty page #10457

3 Answer(s)

• 

  0

  AI-Bot created 18 hours ago

  Support Team ABP Agent

  • A 302 after login in ABP UI typically means the browser is being redirected to the login page again for the first API calls (most commonly /api/abp/application-configuration). The UI then boots in an “anonymous/no data” state. After a hard refresh, the authentication state is established and the same requests return 200, so data appears.

  • In a single-layer (monolith) Web + API setup, the most common reason is that the UI makes API calls before the authenticated application state is refreshed (or the token/cookie is not considered valid for that first round-trip), so the first config/data call gets redirected (302), resulting in an empty page.

  Fix (Angular UI / SPA scenario)

  1. After login completes, force ABP Angular to refresh the application configuration/state (this is what a full page reload achieves):

  import { ConfigStateService } from '@abp/ng.core';
     import { firstValueFrom } from 'rxjs';
  
     // after login success
     await firstValueFrom(this.configStateService.refreshAppState());
  

  2. If you have custom login flow (non-standard redirect flow), also refresh routes/menus if needed (depending on your UI code):

  this.routesService.refresh();
  

  3. As a last resort (but effective), do a full reload after login success:

  window.location.reload();
  

  Fix (MVC/Razor Pages UI scenario)

  • If your UI is MVC and the “empty page” is actually caused by a redirect loop on AJAX calls, ensure your page is not rendering based on unauthenticated app configuration. In practice, the same diagnosis applies: the initial /api/abp/application-configuration (or your page’s first API call) is getting a 302 to /Account/Login. The fix is to ensure authentication is fully established before making those AJAX calls (or avoid rendering the page until configuration is loaded). If you’ve customized login behavior, revert to the standard ABP login flow or ensure the returnUrl/redirect completes normally.

  Sources

  • https://abp.io/support/questions/10297
  • https://abp.io/community/articles/9a40f3cd

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• 

  0

  Hon-Tre_IFS created 17 hours ago

  we have to redirect to Angular UI / SPA scenario, and it returns 302 and empty data. but after hard refresh it returns the data and response code is 200

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• 

  0

  AI-Bot created 17 hours ago

  Support Team ABP Agent

  • In ABP Angular (SPA), seeing 302 right after login (and an empty page) almost always means your first API calls (commonly /api/abp/application-configuration) are being redirected to the login page (302) because the Angular app state/config is still the “anonymous” one at that moment. A hard refresh fixes it because the app boots from scratch and fetches configuration again with a valid session/token, so you then get 200 and data.

  Solution

  1. After login success, refresh ABP Angular application configuration/state (this is the SPA equivalent of the “hard refresh” you’re doing manually):

  import { ConfigStateService } from '@abp/ng.core';
     import { firstValueFrom } from 'rxjs';
  
     // call this after login succeeds (after redirect callback is processed)
     await firstValueFrom(this.configStateService.refreshAppState());
  

  2. If your menu/routes depend on permissions, refresh them too:

  this.routesService.refresh();
  

  3. If you have a custom login callback/redirect handler and you can’t easily plug the refresh in the right spot, the pragmatic fallback is:

  window.location.reload();
  

  (This works because it forces ABP Angular to re-bootstrap and re-fetch /api/abp/application-configuration with an authenticated context.)

  What to check (to confirm you’re fixing the right thing)

  • In DevTools Network, find which request returns 302 right after login (very often /api/abp/application-configuration).
  • That 302 indicates the backend is treating that request as unauthenticated at that moment; refreshing app state (or reloading) ensures ABP Angular re-reads the authenticated state and proceeds.

  References

  • https://abp.io/support/questions/10297
  • https://abp.io/docs/latest/framework/ui/angular/overview

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  This response was generated by AI. If it didn’t solve your problem, feel free to post a new answer — our support team will jump in to help you soon.

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