fix and update

apps/api-gateway/src/interceptors/fedcm-cookie.interceptor.ts

@@ -1,6 +1,6 @@
 import { CallHandler, ExecutionContext, Injectable, NestInterceptor } from '@nestjs/common';
 import { JwtService } from '@nestjs/jwt';
-import { Observable, tap } from 'rxjs';
+import { Observable, mergeMap } from 'rxjs';
 import type { Response } from 'express';
 import { attachFedcmCookieFromAuthResult } from '../lib/fedcm-cookie';
 
@@ -13,8 +13,9 @@ export class FedcmCookieInterceptor implements NestInterceptor {
     const response = http.getResponse<Response>();
 
     return next.handle().pipe(
-      tap((data) => {
-        attachFedcmCookieFromAuthResult(response, this.jwt, data);
+      mergeMap(async (data) => {
+        await attachFedcmCookieFromAuthResult(response, this.jwt, data);
+        return data;
       })
     );
   }