Send javascript errors to server

imgsrc-errorlog-server.js

var errorLog = function errorLog(msg, url, line) {

  var i = document.createElement('img');
  i.src = '/error/log?msg=' + encodeURIComponent(msg) + '&url=' + encodeURIComponent(url) + '&line=' + encodeURIComponent(line);

};

window.onerror = errorLog;

xhr-errorlog-server.js

var errorLog = function errorLog(msg, url, line) {

  var thisUrl = '/error/log?msg=' + encodeURIComponent(msg) + '&url=' + encodeURIComponent(url) + '&line=' + encodeURIComponent(line);
  xhr = new XMLHttpRequest();
  xhr.open("GET", thisUrl, true);
  xhr.send(null);
};
 
window.onerror = errorLog;