success_action_status策略条件FineUploader失败

Question

我正在尝试将文件上传到s3，但出现此错误：

“根据策略无效：策略条件失败：[“ eq”，“ $ success_action_status”，“ 201”]“

FineUploader似乎在POST中将“ success_action_status”传递给S3，这是造成此问题的原因吗？

UI

    const uploader = new FineUploaderS3({
    options: {
        request: {
            accessKey: "accessKey",
            endpoint: "https://MyBUCKET.s3.amazonaws.com",
            customHeaders: {
                "Authorization": "",
            },
        },
        signature: {
            endpoint: 'home/generatesignature'
        },
        callbacks: {
            onComplete: function (id, name, res, a) {
                console.log(res)
                console.log(a)

            }
        },
        objectProperties: {
            key: function (fileId) {
                return "images/"

            },
            acl: 'public-read',
            bucket: 'bucketName',


        },

        debug: true,
        autoUpload: true
    }
})

政策

  var s3Policy = {
    "expiration": getExpiryTime(),
    "conditions": [
      ["starts-with", "$key", "images/"],
      {
        "bucket": process.env.AWS_S3_BUCKET
      },
      {
        "acl": "public-read"
      },
      ["starts-with", "$Content-Type", contentType],
      { "x-amz-meta-qqfilename": "houna.png" },
      {
        'success_action_status': '201'
      }
    ]
  };