将大文件直接上传到amazon s3存储桶时获得400 Bad Request响应

Question

我已按照本教程：https://www.designedbyaturtle.co.uk/2013/direct-upload-to-s3-with-a-little-help-from-jquery/

除非我尝试上传大文件，否则一切正常。我还启用了文件分块，并将块的最大文件大小设置为5mb。然而，当我尝试上传大约70mb的文件时，错误仍然存​​在，随机出现。有时它甚至可以工作，但大部分时间它都没有。

以下是我得到的回复：

Remote Address:54.231.17.48:80
Request URL:http://s3.amazonaws.com/.../
Request Method:POST
Status Code:400 Bad Request

响应标题：

Access-Control-Allow-Methods:HEAD, GET, PUT, POST, DELETE
Access-Control-Allow-Origin:*
Access-Control-Expose-Headers:ETag, x-amz-meta-custom-header
Access-Control-Max-Age:30000
Connection:close
Content-Type:application/xml
Date:Mon, 12 Oct 2015 14:07:00 GMT
Server:AmazonS3
Transfer-Encoding:chunked
Vary:Origin, Access-Control-Request-Headers, Access-Control-Request-Method
x-amz-id-...
x-amz-request-id:...

回复机构：

<Error>
            <Code>
                RequestTimeout
            </Code>
            <Message>
                Your socket connection to the server was not read from or written to within the timeout period. Idle connections will be closed.
            </Message>
            <RequestId>
                7699FD31BA7905C6
            </RequestId>
            <HostId>
                ...
            </HostId>
        </Error>

我该如何使这项工作？它在某些时候有效，但并非在所有时间都有效。