我已经将我的Symfony应用从6.2升级到6.3。本地一切都很完美，但我在暂存环境上遇到了问题。当我试图通过API登录（或获取一些资源）时，我从Varnish Cache Server收到了503 First Byte Error。在Kubernetes日志中，一切都很好（响应状态代码为204，并且存在头）。
我已经改变了一些Normalizer类来删除弃用，例如UserNormalizer
升级前版本：

<?php

declare(strict_types=1);

namespace App\Api\User\Serializer;

use App\Entity\User;
use App\Repository\CategoryRepository;
use Symfony\Component\Serializer\Normalizer\CacheableSupportsMethodInterface;
use Symfony\Component\Serializer\Normalizer\NormalizerInterface;

class UserNormalizer implements NormalizerInterface, CacheableSupportsMethodInterface
{
    public function __construct(
        private readonly NormalizerInterface $itemNormalizer,
        private readonly CategoryRepository $categoryRepository,
    ) {
    }

    /** @param User $object */
    public function normalize($object, $format = null, array $context = []): array|string
    {
        $object->categoryIds = $this->categoryRepository->findIdsWithJobsByUser($object);

        return $this->itemNormalizer->normalize($object, $format, $context);
    }

    public function supportsNormalization($data, $format = null, array $context = []): bool
    {
        return $data instanceof User;
    }

    public function hasCacheableSupportsMethod(): bool
    {
        return true;
    }
}

字符串
升级后

<?php

declare(strict_types=1);

namespace App\Api\User\Serializer;

use App\Entity\User;
use App\Repository\CategoryRepository;
use Symfony\Component\Serializer\Normalizer\NormalizerInterface;

final readonly class UserNormalizer implements NormalizerInterface
{
    public function __construct(
        private NormalizerInterface $itemNormalizer,
        private CategoryRepository $categoryRepository,
    ) {
    }

    /** @param User $object */
    public function normalize($object, $format = null, array $context = []): array|string
    {
        $object->categoryIds = $this->categoryRepository->findIdsWithJobsByUser($object);

        return $this->itemNormalizer->normalize($object, $format, $context);
    }

    public function supportsNormalization($data, $format = null, array $context = []): bool
    {
        return $data instanceof User;
    }

    public function getSupportedTypes(?string $format): array
    {
        return [
            '*' => false,
            User::class => true,
        ];
    }
}

型
我已经删除了CacheableSupportsMethodInterface的实现（使用方法hasCacheableSupportsMethod()），并根据文档和built-in normalizer将其替换为getSupportedTypes()。
我的应用程序在Google Kubernetes Engine（GCP）上运行，并通过Fastly交付。
有人遇到过同样的问题吗？
PS.一些资源是正确的（例如静态页面，也被缓存，并有类似的getSupportedTypes()实现）。