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                <div id="beforeSendMessage"></div>  
 /* Chatbro Widget Embed Code Start */
function ChatbroLoader(chats,async){async=!1!==async;var params={embedChatsParameters:chats instanceof Array?chats:[chats],lang:navigator.language||navigator.userLanguage,needLoadCode:'undefined'==typeof Chatbro,embedParamsVersion:localStorage.embedParamsVersion,chatbroScriptVersion:localStorage.chatbroScriptVersion},xhr=new XMLHttpRequest;xhr.withCredentials=!0,xhr.onload=function(){eval(xhr.responseText)},xhr.onerror=function(){console.error('Chatbro loading error')},'GET','//'+btoa(unescape(encodeURIComponent(JSON.stringify(params)))),async),xhr.send()}
/* Chatbro Widget Embed Code End */




  chatPath: "vk/ddosoff/beforeSendMessage_en",
  containerDivId: 'beforeSendMessage',
  chatLanguage: 'en',
  chatState: 'maximized',
  showHelpMessages: false

document.addEventListener('chatLoaded', function() {
  document.addEventListener('beforeSendMessage', function(event) {
    // message object
    var message = event.message;
    var validHosts = ['', ''];
    // find bad links
    var invalidUrls = message.links.filter(function(url) {     
      for (var i in validHosts) {
        if ([i]) !== -1) return false;
      return true;
    // remove from message
    for (var i in invalidUrls) {  
        message.text = message.text.replace(invalidUrls[i].url, '');        
    // warning
    if (!message.text.trim().length) {
      return event.onFail('Empty message.');

    // send message