Fix eslint no-prototype-builtins.

themes/bootstrap3/js/common.js

 /*global grecaptcha, isPhoneNumberValid */
-/*exported VuFind, htmlEncode, deparam, moreFacets, lessFacets, getUrlRoot, phoneNumberFormHandler, recaptchaOnLoad, resetCaptcha, bulkFormHandler, setupMultiILSLoginFields */
+/*exported VuFind, htmlEncode, deparam, moreFacets, lessFacets, getUrlRoot, phoneNumberFormHandler, recaptchaOnLoad, resetCaptcha, bulkFormHandler */
 
 // IE 9< console polyfill
 window.console = window.console || { log: function polyfillLog() {} };
@@ -163,16 +163,13 @@ function getUrlRoot(url) {
   var urlroot = null;
   var urlParts = url.split(/[?#]/);
   var urlWithoutFragment = urlParts[0];
-  var slashSlash = urlWithoutFragment.indexOf('//');
-  if (VuFind.path === '' || VuFind.path === '/') {
+  if (VuFind.path === '') {
     // special case -- VuFind installed at site root:
     var chunks = urlWithoutFragment.split('/');
-    // We need to extract different offsets if this is a full vs. relative URL:
-    urlroot = slashSlash > -1
-      ? ('/' + chunks[3] + '/' + chunks[4])
-      : ('/' + chunks[1] + '/' + chunks[2]);
+    urlroot = '/' + chunks[3] + '/' + chunks[4];
   } else {
     // standard case -- VuFind has its own path under site:
+    var slashSlash = urlWithoutFragment.indexOf('//');
     var pathInUrl = slashSlash > -1
       ? urlWithoutFragment.indexOf(VuFind.path, slashSlash + 2)
       : urlWithoutFragment.indexOf(VuFind.path);
@@ -358,26 +355,6 @@ function setupJumpMenus(_container) {
   container.find('select.jumpMenu').change(function jumpMenu(){ $(this).parent('form').submit(); });
 }
 
-function setupMultiILSLoginFields(loginMethods, idPrefix) {
-  var searchPrefix = idPrefix ? '#' + idPrefix : '#';
-  $(searchPrefix + 'target').change(function onChangeLoginTarget() {
-    var target = $(this).val();
-    var $usernameGroup = $(searchPrefix + 'username').closest('.form-group');
-    var $password = $(searchPrefix + 'password');
-    if (loginMethods[target] === 'email') {
-      $usernameGroup.find('label.password-login').addClass('hidden');
-      $usernameGroup.find('label.email-login').removeClass('hidden');
-      $password.closest('.form-group').addClass('hidden');
-      // Set password to a dummy value so that any checks for username+password work
-      $password.val('****');
-    } else {
-      $usernameGroup.find('label.password-login').removeClass('hidden');
-      $usernameGroup.find('label.email-login').addClass('hidden');
-      $password.closest('.form-group').removeClass('hidden');
-    }
-  }).change();
-}
-
 $(document).ready(function commonDocReady() {
   // Start up all of our submodules
   VuFind.init();
@@ -431,18 +408,21 @@ $(document).ready(function commonDocReady() {
   if (url.indexOf('?' + 'print' + '=') !== -1 || url.indexOf('&' + 'print' + '=') !== -1) {
     $("link[media='print']").attr("media", "all");
     $(document).ajaxStop(function triggerPrint() {
-      // Print dialogs cause problems during testing, so disable them
-      // when the "test mode" cookie is set. This should never happen
-      // under normal usage outside of the Phing startup process.
-      if (document.cookie.indexOf('VuFindTestSuiteRunning=') === -1) {
-        window.print();
-      } else {
-        console.log("Printing disabled due to test mode."); // eslint-disable-line no-console
-      }
+      window.print();
     });
     // Make an ajax call to ensure that ajaxStop is triggered
     $.getJSON(VuFind.path + '/AJAX/JSON', {method: 'keepAlive'});
   }
 
+  // retain filter sessionStorage
+  $('.searchFormKeepFilters').click(function retainFiltersInSessionStorage() {
+    sessionStorage.setItem('vufind_retain_filters', this.checked ? 'true' : 'false');
+    $('.applied-filter').prop('checked', this.checked);
+  });
+  if (sessionStorage.getItem('vufind_retain_filters')) {
+    var state = (sessionStorage.getItem('vufind_retain_filters') === 'true');
+    $('.searchFormKeepFilters,.applied-filter').prop('checked', state);
+  }
+
   setupIeSupport();
 });