Confluence post API call giving 415 error using Javascript

I am using an HTML macro to in the confluence which allows you to write custom JavaScript code. I am trying to create a page using the javascript, for some reason I am getting a 415 Unsupported Media type error. I have specified the content-type as well in the code but still getting the same error.
here is the code that I am using

var myHeaders = new Headers();
    myHeaders.append("Authorization", "Basic <api-token>");
    myHeaders.append("Content-Type", "application/json");
    myHeaders.append("Cookie", "atlassian.xsrf.token=784d27c2-5489-4932-b2e8-4123214f8ee2_41e5feab5ed210639dd428dae1bcd44e6df73e1c_lin");
    var raw = JSON.stringify({
      "spaceId": 395018479,
      "status": "current",
      "title": "API Test2",
      "body": {
        "representation": "Storage",
        "value": "<h1>test</h1>"
    var requestOptions = {
      method: 'POST',
      headers: myHeaders,
      mode: 'no-cors',
      body: raw,
      redirect: 'follow'
    fetch("", requestOptions)
      .then(response => response.text())
      .then(result => console.log(result))
      .catch(error => console.log('error', error));

Thank you.

Hi @SainathReddyGadekall ,

Please try adding an Accept header with the value application/json. Let me know if that resolves your issue or not.