diff --git a/server/skillhub-auth/src/main/java/com/iflytek/skillhub/auth/oauth/IdentityProviderRouteReadinessFilter.java b/server/skillhub-auth/src/main/java/com/iflytek/skillhub/auth/oauth/IdentityProviderRouteReadinessFilter.java
index 19b74ad2..8ead2c02 100644
--- a/server/skillhub-auth/src/main/java/com/iflytek/skillhub/auth/oauth/IdentityProviderRouteReadinessFilter.java
+++ b/server/skillhub-auth/src/main/java/com/iflytek/skillhub/auth/oauth/IdentityProviderRouteReadinessFilter.java
@@ -55,7 +55,7 @@ public final class IdentityProviderRouteReadinessFilter
                 ? null
                 : registrationRepository.findByRegistrationId(registrationId);
         if (registration == null) {
-            response.sendError(HttpServletResponse.SC_FORBIDDEN);
+            response.setStatus(HttpServletResponse.SC_FORBIDDEN);
             return;
         }
 
@@ -70,14 +70,14 @@ public final class IdentityProviderRouteReadinessFilter
                     "Identity provider route '{}' rejected before upstream I/O: {}",
                     registration.getRegistrationId(),
                     exception.getReasonCode());
-            response.sendError(status);
+            response.setStatus(status);
             return;
         } catch (RuntimeException exception) {
             log.error(
                     "Identity provider route '{}' readiness check failed",
                     registration.getRegistrationId(),
                     exception);
-            response.sendError(
+            response.setStatus(
                     HttpServletResponse.SC_SERVICE_UNAVAILABLE);
             return;
         }
diff --git a/server/skillhub-auth/src/test/java/com/iflytek/skillhub/auth/oauth/IdentityProviderRouteReadinessFilterTest.java b/server/skillhub-auth/src/test/java/com/iflytek/skillhub/auth/oauth/IdentityProviderRouteReadinessFilterTest.java
index a66dcd86..0cf7ae02 100644
--- a/server/skillhub-auth/src/test/java/com/iflytek/skillhub/auth/oauth/IdentityProviderRouteReadinessFilterTest.java
+++ b/server/skillhub-auth/src/test/java/com/iflytek/skillhub/auth/oauth/IdentityProviderRouteReadinessFilterTest.java
@@ -71,6 +71,7 @@ class IdentityProviderRouteReadinessFilterTest {
         filter.doFilter(request, response, chain);
 
         assertThat(response.getStatus()).isEqualTo(503);
+        assertThat(response.isCommitted()).isFalse();
         verify(chain, never()).doFilter(request, response);
     }
 
@@ -89,6 +90,7 @@ class IdentityProviderRouteReadinessFilterTest {
         filter.doFilter(request, response, chain);
 
         assertThat(response.getStatus()).isEqualTo(403);
+        assertThat(response.isCommitted()).isFalse();
         verify(chain, never()).doFilter(request, response);
     }
 
@@ -104,6 +106,7 @@ class IdentityProviderRouteReadinessFilterTest {
         filter.doFilter(request, response, chain);
 
         assertThat(response.getStatus()).isEqualTo(403);
+        assertThat(response.isCommitted()).isFalse();
         verify(readinessService, never())
                 .requireReady(registration);
         verify(chain, never()).doFilter(request, response);