DownloadBlobFromCleopatra.js

// inject: https://github.com/eligrey/FileSaver.js/blob/master/FileSaver.js

var downloadBtnDiv = document.getElementsByClassName("profileSharingProfileDownloadButton")[0];
var downloadBtn = downloadBtnDiv.childNodes[0].childNodes[0];
downloadBtn.click();

var downloadLinks = document.getElementsByClassName("profileSharingDownloadLink");
var firstDownloadLinks = downloadLinks[0];
var downloadObjURL = firstDownloadLinks.href;

var localFile = "askeingprofiledata.json";


var myBlob;
var myFile;

var xhr = new XMLHttpRequest();
xhr.open('GET', downloadObjURL, true);
xhr.responseType = 'blob';
xhr.onload = function(e) {
  if (this.status == 200) {
    myBlob = this.response;
    console.log(myBlob);
    // myFile = new File([myBlob], localFile);
    myFile = saveAs(myBlob, localFile);
  }
};
xhr.send();