Ajax call with pre-signed URL giving error

[phanikumar]

I have created a simple html page which contains an ajax call to API endpoint to retrieve pre-signed URL. Using the URL retrieved from the previous ajax call, I tried upload a sample text file which is resulting in the request signature we calculated does not match the signature you provided. Check your key and signing method response. But when I am using the same URL using CURL, it is working Good. Can someone suggest me what I am missing in the request.