CORS error in getHostedPaymentPageRequest API call using Java script

[softclouds2020]

Getting the below error message while calling the API. I have added all the possible options in the header. Please take a look at the JS code and the error message below and suggest me a solution.

JS Code:

--------------

xhr.open("POST", "https://apitest.authorize.net/xml/v1/request.api");
xhr.setRequestHeader("Access-Control-Allow-Origin", "*");
xhr.setRequestHeader("Access-Control-Allow-Headers", "Origin, Accept, Accept-Encoding, Connection, Content-Type, cache-control, method, X-Requested-With, Access-Control-Request-Method, Access-Control-Request-Headers,Authorization,X-Auth-Token");
xhr.setRequestHeader("Access-Control-Allow-Methods","GET,HEAD,POST,PUT,PATCH,DELETE,OPTIONS");
xhr.setRequestHeader("Content-Type", "application/json");
//xhr.setRequestHeader("Access-Control-Allow-Origin", "application/json");
xhr.send(data);

Error:

----------

Access to XMLHttpRequest at 'https://apitest.authorize.net/xml/v1/request.api' from origin 'https://****.com' has been blocked by CORS policy: Request header field access-control-allow-origin is not allowed by Access-Control-Allow-Headers in preflight response.

[NexusSoftware]

Ensure that the domain with the Access-Control-Allow-Origin header is exactly the same as the one your are calling https://apitest.authorize.net/xml/v1/request.api from. For example www.domain.com is considered to be a diffferent domain than domain.com, as is the port https vs http.

If you have a public URL that you are https://apitest.authorize.net/xml/v1/request.api from, we could inspect it for you.

[softclouds2020]

Thanks for your response. It is resolved after removing all the headers.

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"Learn all about CORS, the difference between simple and preflighted requests, 

and how to add CORS support to an existing Node Express app! "