Bank_Hapoalim.user.js

// ==UserScript==
// @name        Bank Hapoalim
// @description Workaround bugs in Bank Hapoalim website to display pdf messages.
// @author      Guy Rutenberg
// @namespace   http://www.guyrutenberg.com
// @include     https://login.bankhapoalim.co.il/portalserver/mailInbox#/folders/0
// @include     https://login.bankhapoalim.co.il/ng1-portals/rb/he/mails#/folders/0
// @run-at      document-idle
// @version     1.1
// @grant       none
// ==/UserScript==
//
// @include url should be the url of the inner iframe containing the list of mails.
var MutationObserver = window.MutationObserver;
var myObserver       = new MutationObserver (mutationHandler);
var obsConfig        = {
	childList: true, attributes: false,
	subtree: true,
};

var target = document.getElementsByTagName('mail-manager')[0];
myObserver.observe (target, obsConfig);

function mutationHandler (mutationRecords) {
  console.log('here');
	mutationRecords.forEach ( function (mutation) {
		for (var item of mutation.addedNodes) {
			if (item.tagName == 'PDF-VIEWER') {
				var url = 'https://login.bankhapoalim.co.il' + item.getAttribute('pdf-show');
				iframe = item.querySelector('iframe');
				iframe.src = url;
			}
		}
	});
}