问从CloudFlare访问媒体文件时出现的R2桶错误

EN

fetch('https://USER_ID.r2.cloudflarestorage.com/PROJECT_NAME/src/thumbs/BLAHBLAH', {
    method: 'GET',
    headers: {
        'Content-Type': 'image/jpeg',
        'Authorization': 'SECRET_KEY_FOR_API',
        'X-Amz-Ac': 'private',
        'X-Amz-Algorithm': 'AWS4-HMAC-SHA256',
        'X-Amz-Date': (new Date().toISOString().split(':').join('').split('.')[0] + 'Z').split('-').join(''),
        'X-Amz-Expires': '86400',
        'x-amz-content-sha256': 'UNSIGNED-PAYLOAD',
}}).then(res => res.text()).then(buffer => {
            console.log(buffer);
}).catch(err => {
        console.log(err);
});