now directs correctly preserving the original URI (#542)

src/config.ts

@@ -35,7 +35,6 @@ declare global {
     config_INFORMATION_CONTROL_CONFIG: InformationControlConfig;
     config_DEFAULT_USER_LANGUAGE: string;
     config_INITIAL_USER_PROMPT: IntitialUserPrompt | null;
-    AUTH_REDIRECT_URL: string;
   }
 }
 
@@ -51,7 +50,6 @@ const settings = {
   // The initial user prompt has been made because some customers want an
   // initial prompt to be displayed to the user when they first time visit the site.
   INITIAL_USER_PROMPT: window.config_INITIAL_USER_PROMPT,
-  AUTH_REDIRECT_URL: window.location.origin
 };
 
 export default settings;

src/index.tsx

@@ -14,16 +14,19 @@ import { AuthWrapperProvider } from "./contexts/AuthWrapperContext";
 const oidcConfig = {
   authority: `${Config.KEYCLOAK_URI}/realms/openftth`,
   client_id: "openftth-frontend",
-  redirect_uri: Config.AUTH_REDIRECT_URL,
+  redirect_uri: window.location.href,
 };
 
 // This is used to clear the history after the sign-in redirect.
 const onSigninCallback = (_user: any | void): void => {
-  window.history.replaceState(
-    {},
-    document.title,
-    window.location.pathname
-  )
+  const url = new URL(window.location.href);
+  if (url.searchParams.has('state') && url.searchParams.has('session_state') && url.searchParams.has('iss') && url.searchParams.has('code')) {
+    url.searchParams.delete('state');
+    url.searchParams.delete('session_state');
+    url.searchParams.delete('iss');
+    url.searchParams.delete('code');
+    window.history.replaceState({}, '', url.toString());
+  }
 }
 
 ReactDOM.render(