Ajax call with pre-signed URL giving error

[fzs]

I am not using authorization headers. I am using the entire signed URL to make the Request. Also I do agree that using SDK is a good choice. But I have a situation where my code sits on Lambda function which has limitation of 6MB for file size and API Gateway has 10MB Payload limit. My files are too large and I can't handle that through Lambda and API Gateway. I am checking the possible ways to handle this. One other option that I am focusing on is multi-part upload. But I would like to get implement both to see the performance difference and advantages. I have attached the code for this forum which I am using to upload the code. Can you please have a look at the code and let me know if I am missing something

Please post the output of 

console.log(this.httpResponse)

console.log(this.request.httpRequest)

example

   console.log("Got error:", err.message);
   console.log("Request:");
   console.log(this.request.httpRequest);
   console.log("Response:");
   console.log(this.httpResponse);