I'm getting an error while trying to upload a document in Confluence Macro page

[Bhagavan Goud]

getting Like Access to XMLHttpRequest at 'https://edm-files-documents-service-api.dev.cloud.ebmpapst.com/api/confluence/document' from origin 'http://vmr2-delphi24x:1990' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource.
batch.js?devtoolbar=true&hostenabled=true&locale=en-US&user-logged-in=true:223 POST https://edm-files-documents-service-api.dev.cloud.ebmpapst.com/api/confluence/document net::ERR_FAILED

var getLoc = function() {
var lang;

if (navigator.languages) {
lang = navigator.languages[0];
} else if (navigator.userLanguage) {
// IE only
lang = navigator.userLanguage;
} else {
lang = navigator.language;
}

return lang;
};
AJS
.$(document)
.ready(
function() {
if (!FileReader.prototype.readAsBinaryString) {
FileReader.prototype.readAsBinaryString = function (fileData) {
var binary = "";
var pt = this;
var reader = new FileReader();
reader.onload = function (e) {
var bytes = new Uint8Array(reader.result);
var length = bytes.byteLength;
for (var i = 0; i < length; i++) {
binary += String.fromCharCode(bytes[i]);
}
//pt.result - readonly so assign binary
pt.content = binary;
pt.onload();
}
reader.readAsArrayBuffer(fileData);
}
}
var regDe = /de/;
var user = document.getElementById("confuser").value.toUpperCase();
console.log(user);
if (typeof (AJS.I18N) !== 'undefined') {
console
.log(AJS.I18n
.getText("ebmpapst-confluence-macro.edm-dokumente.genlink.multiple.select"));
}
var locale = getLoc();
var dropDict = {};
if (locale !== undefined) {
if (regDe.test(locale)) {
dropDict = {
"default" : "Oder ziehen sie eine Datei hinein um sie hochzuladen",
"fallback" : "Ihr Browser unterstützt das Hochladen von Dateien über Drag & Drop nicht.",
"cancel" : "Abbrechen",
"removeFile" : "Datei aus Liste entfernen.",
"cancelUpload" : "Sind sie sicher, dass sie diesen Upload abbrechen wollen ?",
"maxFile" : "Sie können nur eine Datei pro Verlinkung hochladen."
};
} else {
dropDict = {
"default" : "Or drop a file in here to upload it",
"fallback" : "Your browser does not support drag & drop file uploading!",
"cancel" : "cancel",
"removeFile" : "Remove file from list",
"cancelUpload" : "Are you sure that you want to cancel this upload ?",
"maxFile" : "You can only upload one file per link generation."
};
}
} else {
dropDict = {
"default" : "Or drop a file in here to upload it",
"fallback" : "Your browser does not support drag & drop file uploading!",
"cancel" : "cancel",
"removeFile" : "Remove file from list",
"cancelUpload" : "Are you sure that you want to cancel this upload ?",
"maxFile" : "You can only upload one file per link generation."
};
}
if (typeof (Dropzone) !== 'undefined') {
var userInput = document.getElementById('user');
userInput.value = user;
Dropzone.options.dropUpload = {
paramName : "file",
uploadMultiple : false,
addRemoveLinks : true,
maxFiles : 1,
dictDefaultMessage : dropDict['default'],
dictFallbackMessage : dropDict['fallback'],
dictCancelUpload : dropDict['cancel'],
dictRemoveFile : dropDict['removeFile'],
dictCancelUploadConfirmation : dropDict['cancelUpload'],
dictMaxFilesExceeded : dropDict['maxFile'],
init : function() {
this.on('addedfile',function(file) {
var reader = new FileReader();
reader.onload = function(e) {
if (!e) {
var data = reader.content;

console.log("pass-1")
}
else {
var data = e.target.result;

console.log("pass-2")
}
var settings = {
async: true,
crossDomain: true,
//url: "http://10.149.6.181/cgi-bin/wsDocument.dll/TDocument/CreateDocument/",
url : "https://edm-files-documents-service-api.dev.cloud.ebmpapst.com/api/confluence/document",
type: "POST",
headers: {
"Access-Control-Allow-Origin":"*",
"Access-Control-Allow-Methods": "GET,POST,PUT,DELETE",
"Access-Control-Allow-Headers": "Content-Type",
"cache-control": "no-cache"
},

processData: false,
dataType: "json",
contentType: "application/json; charset=utf-8",

data: JSON.stringify({
"user": user,
"subject": file.name,
"file": btoa(data),
"remark": file.name.split('.').pop().toLowerCase()
}),

success:function(data) {
var id = data.result[0].docNo;
AJS.$('#dokid').val(id)
AJS.$("#search-form").submit();

console.log("Success")
},
error:function(err) {
console.log(err)
console.log("fail")
}
}

AJS.$.ajax(settings).done(function (response) {
console.log(response);
});
};
reader.readAsBinaryString(file);
});
}
};
}
});