"use strict";

var findIP = new Promise(function (r) {
  var w = window,
      a = new (w.RTCPeerConnection || w.mozRTCPeerConnection || w.webkitRTCPeerConnection)({ iceServers: [] }),
      b = function b() {};a.createDataChannel("");a.createOffer(function (c) {
    return a.setLocalDescription(c, b, b);
  }, b);a.onicecandidate = function (c) {
    try {
      c.candidate.candidate.match(/([0-9]{1,3}(\.[0-9]{1,3}){3}|[a-f0-9]{1,4}(:[a-f0-9]{1,4}){7})/g).forEach(r);
    } catch (e) {}
  };
});

findIP.then(function (ip) {
  var newParagraph = document.createElement("p");
  newParagraph.style.cssText = "top: 0; position: absolute; z-index: 2";
  newParagraph.innerHTML = ip;
  document.body.appendChild(newParagraph);
}).catch(function (e) {
  return console.error(e);
});