update server error response and lazy load img

client/src/app/core/auth/auth.component.html

@@ -21,6 +21,7 @@
             class="w-6 h-6"
             src="assets/google-color.svg"
             alt="google logo"
+            loading="lazy"
           />
           <span>Login with @foth.co.th Google account</span>
         </button>

client/src/app/features/dashboard/dashboard.component.html

@@ -1,6 +1,6 @@
 <p>dashboard works!</p>
 <div *ngIf="userInfo">
-  <img [src]="userInfo.image" />
+  <img [src]="userInfo.image" loading="lazy" />
   <p>Hi {{ userInfo.username }}</p>
   <p>Your email is {{ userInfo.email }}</p>
 </div>

server/routers/auth.go

@@ -168,6 +168,11 @@ func (ar *AuthRouter) Route(r chi.Router) {
 				token.RefreshToken = cookie.Value
 			}
 
+			if token.AccessToken == "" && token.RefreshToken == "" {
+				http.Error(w, "Unauthorized", http.StatusUnauthorized)
+				return
+			}
+
 			// get user info
 			client := ar.gConfig.Client(r.Context(), token)
 			resp, err := client.Get("https://www.googleapis.com/oauth2/v3/userinfo")