diff --git a/src/Subscriber/ManifestCompileEventListener.php b/src/Subscriber/ManifestCompileEventListener.php
index eda62c5..dae83e6 100644
--- a/src/Subscriber/ManifestCompileEventListener.php
+++ b/src/Subscriber/ManifestCompileEventListener.php
@@ -10,6 +10,7 @@
 use Symfony\Component\DependencyInjection\Attribute\Autowire;
 use Symfony\Component\EventDispatcher\Attribute\AsEventListener;
 use Symfony\Component\Serializer\Encoder\JsonEncode;
+use Symfony\Component\Serializer\Normalizer\AbstractNormalizer;
 use Symfony\Component\Serializer\Normalizer\AbstractObjectNormalizer;
 use Symfony\Component\Serializer\SerializerInterface;
 use const JSON_PRETTY_PRINT;
@@ -40,6 +41,7 @@ public function __construct(
         $options = [
             AbstractObjectNormalizer::SKIP_UNINITIALIZED_VALUES => true,
             AbstractObjectNormalizer::SKIP_NULL_VALUES => true,
+            AbstractNormalizer::IGNORED_ATTRIBUTES => ['useCredentials'],
             JsonEncode::OPTIONS => JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE | JSON_THROW_ON_ERROR,
         ];
         if ($debug === true) {
diff --git a/src/Subscriber/PwaDevServerSubscriber.php b/src/Subscriber/PwaDevServerSubscriber.php
index ef76b12..74e7294 100644
--- a/src/Subscriber/PwaDevServerSubscriber.php
+++ b/src/Subscriber/PwaDevServerSubscriber.php
@@ -16,6 +16,7 @@
 use Symfony\Component\HttpKernel\KernelEvents;
 use Symfony\Component\HttpKernel\Profiler\Profiler;
 use Symfony\Component\Serializer\Encoder\JsonEncode;
+use Symfony\Component\Serializer\Normalizer\AbstractNormalizer;
 use Symfony\Component\Serializer\Normalizer\AbstractObjectNormalizer;
 use Symfony\Component\Serializer\SerializerInterface;
 use function assert;
@@ -69,6 +70,7 @@ public function __construct(
         $options = [
             AbstractObjectNormalizer::SKIP_UNINITIALIZED_VALUES => true,
             AbstractObjectNormalizer::SKIP_NULL_VALUES => true,
+            AbstractNormalizer::IGNORED_ATTRIBUTES => ['useCredentials'],
             JsonEncode::OPTIONS => JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE | JSON_THROW_ON_ERROR,
         ];
         if ($debug === true) {