diff --git a/www/js/app.js b/www/js/app.js
index 4ec502258..d5d15e30b 100644
--- a/www/js/app.js
+++ b/www/js/app.js
@@ -30,8 +30,8 @@
 // This uses require.js to structure javascript:
 // http://requirejs.org/docs/api.html#define
 
-define(['jquery', 'zimArchiveLoader', 'uiUtil', 'settingsStore','abstractFilesystemAccess'],
- function($, zimArchiveLoader, uiUtil, settingsStore, abstractFilesystemAccess) {
+define(['jquery', 'zimArchiveLoader', 'uiUtil', 'settingsStore', 'abstractFilesystemAccess'],
+ function ($, zimArchiveLoader, uiUtil, settingsStore, abstractFilesystemAccess) {
     /**
      * The delay (in milliseconds) between two "keepalive" messages sent to the ServiceWorker (so that it is not stopped
      * by the browser, and keeps the MessageChannel to communicate with the application)
@@ -125,7 +125,7 @@ define(['jquery', 'zimArchiveLoader', 'uiUtil', 'settingsStore','abstractFilesys
      * It is also possible for DEV (or user) to launch the app with certain settings, or to unset potentially
      * problematic settings, by crafting the querystring appropriately.
      */
-    (function overrideParams() {
+    (function overrideParams () {
         var regexpUrlParams = /[?&]([^=]+)=([^&]+)/g;
         var matches = regexpUrlParams.exec(window.location.search);
         while (matches) {
@@ -164,7 +164,7 @@ define(['jquery', 'zimArchiveLoader', 'uiUtil', 'settingsStore','abstractFilesys
 
     // Since contentInjectionMode can be overriden when returning from remote PWA to extension (for example), we have to prevent an infinite loop
     // with code that warns the user to turn off the App Cache bypass in jQuery mode. Note that to turn OFF the bypass, we have to set the VALUE to true
-    params.appCache = params.contentInjectionMode === 'jquery' ? true : params.appCache;    
+    params.appCache = params.contentInjectionMode === 'jquery' ? true : params.appCache;
 
     /**
      * Set the State and UI settings associated with parameters defined above
@@ -205,7 +205,7 @@ define(['jquery', 'zimArchiveLoader', 'uiUtil', 'settingsStore','abstractFilesys
 
     // Unique identifier of the article expected to be displayed
     var expectedArticleURLToBeDisplayed = '';
- 
+
     // define and store dark preference for matchMedia
     var darkPreference = window.matchMedia('(prefers-color-scheme:dark)');
     // if 'prefers-color-scheme' is not supported in the browser, then the "auto" options are not displayed to the user
@@ -219,14 +219,14 @@ define(['jquery', 'zimArchiveLoader', 'uiUtil', 'settingsStore','abstractFilesys
     uiUtil.applyAppTheme(params.appTheme);
 
     // Whenever the system theme changes, call applyAppTheme function
-    darkPreference.onchange = function() {
+    darkPreference.onchange = function () {
         uiUtil.applyAppTheme(params.appTheme);
     }
 
     /**
      * Resize the IFrame height, so that it fills the whole available height in the window
      */
-    function resizeIFrame() {
+    function resizeIFrame () {
         var headerStyles = getComputedStyle(document.getElementById('top'));
         var iframe = document.getElementById('articleContent');
         var region = document.getElementById('search-article');
@@ -235,7 +235,7 @@ define(['jquery', 'zimArchiveLoader', 'uiUtil', 'settingsStore','abstractFilesys
             region.style.height = window.innerHeight + 'px';
         } else {
             // IE cannot retrieve computed headerStyles till the next paint, so we wait a few ticks
-            setTimeout(function() {
+            setTimeout(function () {
                 // Get  header height *including* its bottom margin
                 var headerHeight = parseFloat(headerStyles.height) + parseFloat(headerStyles.marginBottom);
                 iframe.style.height = window.innerHeight - headerHeight + 'px';
@@ -249,7 +249,7 @@ define(['jquery', 'zimArchiveLoader', 'uiUtil', 'settingsStore','abstractFilesys
 
     // Define behavior of HTML elements
     var searchArticlesFocused = false;
-    $('#searchArticles').on('click', function() {
+    $('#searchArticles').on('click', function () {
         var prefix = document.getElementById('prefix').value;
         // Do not initiate the same search if it is already in progress
         if (appstate.search.prefix === prefix && !/^(cancelled|complete)$/.test(appstate.search.status)) return;
@@ -264,17 +264,17 @@ define(['jquery', 'zimArchiveLoader', 'uiUtil', 'settingsStore','abstractFilesys
         // This flag is set to true in the mousedown event below
         searchArticlesFocused = false;
     });
-    $('#searchArticles').on('mousedown', function() {
+    $('#searchArticles').on('mousedown', function () {
         // We set the flag so that the blur event of #prefix can know that the searchArticles button has been clicked
         searchArticlesFocused = true;
     });
-    $('#formArticleSearch').on('submit', function() {
+    $('#formArticleSearch').on('submit', function () {
         document.getElementById('searchArticles').click();
         return false;
     });
     // Handle keyboard events in the prefix (article search) field
     var keyPressHandled = false;
-    $('#prefix').on('keydown', function(e) {
+    $('#prefix').on('keydown', function (e) {
         // If user presses Escape...
         // IE11 returns "Esc" and the other browsers "Escape"; regex below matches both
         if (/^Esc/.test(e.key)) {
@@ -325,25 +325,25 @@ define(['jquery', 'zimArchiveLoader', 'uiUtil', 'settingsStore','abstractFilesys
         }
     });
     // Search for titles as user types characters
-    $('#prefix').on('keyup', function(e) {
+    $('#prefix').on('keyup', function (e) {
         if (selectedArchive !== null && selectedArchive.isReady()) {
             // Prevent processing by keyup event if we already handled the keypress in keydown event
             if (keyPressHandled) { keyPressHandled = false; } else { onKeyUpPrefix(e); }
         }
     });
     // Restore the search results if user goes back into prefix field
-    $('#prefix').on('focus', function() {
+    $('#prefix').on('focus', function () {
         if (document.getElementById('prefix').value !== '') { document.getElementById('articleListWithHeader').style.display = ''; }
     });
     // Hide the search results if user moves out of prefix field
-    $('#prefix').on('blur', function() {
+    $('#prefix').on('blur', function () {
         if (!searchArticlesFocused) {
             appstate.search.status = 'cancelled';
             document.getElementById('searchingArticles').style.display = 'none';
             document.getElementById('articleListWithHeader').style.display = 'none';
         }
     });
-    $('#btnRandomArticle').on('click', function() {
+    $('#btnRandomArticle').on('click', function () {
         document.getElementById('prefix').value = '';
         goToRandomArticle();
         document.getElementById('welcomeText').style.display = 'none';
@@ -351,30 +351,30 @@ define(['jquery', 'zimArchiveLoader', 'uiUtil', 'settingsStore','abstractFilesys
         $('.navbar-collapse').collapse('hide');
     });
 
-    $('#btnRescanDeviceStorage').on('click', function() {
+    $('#btnRescanDeviceStorage').on('click', function () {
         searchForArchivesInStorage();
     });
     // Bottom bar :
-    $('#btnBack').on('click', function() {
+    $('#btnBack').on('click', function () {
         history.back();
         return false;
     });
-    $('#btnForward').on('click', function() {
+    $('#btnForward').on('click', function () {
         history.forward();
         return false;
     });
-    $('#btnHomeBottom').on('click', function() {
+    $('#btnHomeBottom').on('click', function () {
         document.getElementById('btnHome').click();
         return false;
     });
-    $('#btnTop').on('click', function() {
+    $('#btnTop').on('click', function () {
         var articleContent = document.getElementById('articleContent');
-        articleContent.contentWindow.scrollTo({top: 0, behavior: 'smooth'});
+        articleContent.contentWindow.scrollTo({ top: 0, behavior: 'smooth' });
         // We return true, so that the link to #top is still triggered (useful in the About section)
         return true;
     });
     // Top menu :
-    $('#btnHome').on('click', function() {
+    $('#btnHome').on('click', function () {
         // Highlight the selected section in the navbar
         document.getElementById('liHomeNav').setAttribute('class', 'active');
         document.getElementById('liConfigureNav').setAttribute('class', '');
@@ -396,7 +396,7 @@ define(['jquery', 'zimArchiveLoader', 'uiUtil', 'settingsStore','abstractFilesys
         document.getElementById('prefix').value = '';
         document.getElementById('prefix').focus();
         var articleList = document.getElementById('articleList');
-        var articleListHeaderMessage =  document.getElementById('articleListHeaderMessage');
+        var articleListHeaderMessage = document.getElementById('articleListHeaderMessage');
         while (articleList.firstChild) articleList.removeChild(articleList.firstChild);
         while (articleListHeaderMessage.firstChild) articleListHeaderMessage.removeChild(articleListHeaderMessage.firstChild);
         document.getElementById('searchingArticles').style.display = 'none';
@@ -413,7 +413,7 @@ define(['jquery', 'zimArchiveLoader', 'uiUtil', 'settingsStore','abstractFilesys
         setTimeout(resizeIFrame, 400);
         return false;
     });
-    $('#btnConfigure').on('click', function() {
+    $('#btnConfigure').on('click', function () {
         // Highlight the selected section in the navbar
         document.getElementById('liHomeNav').setAttribute('class', '');
         document.getElementById('liConfigureNav').setAttribute('class', 'active');
@@ -440,7 +440,7 @@ define(['jquery', 'zimArchiveLoader', 'uiUtil', 'settingsStore','abstractFilesys
         setTimeout(resizeIFrame, 400);
         return false;
     });
-    $('#btnAbout').on('click', function() {
+    $('#btnAbout').on('click', function () {
         // Highlight the selected section in the navbar
         document.getElementById('liHomeNav').setAttribute('class', '');
         document.getElementById('liConfigureNav').setAttribute('class', '');
@@ -465,7 +465,7 @@ define(['jquery', 'zimArchiveLoader', 'uiUtil', 'settingsStore','abstractFilesys
         setTimeout(resizeIFrame, 400);
         return false;
     });
-    $('input:radio[name=contentInjectionMode]').on('change', function() {
+    $('input:radio[name=contentInjectionMode]').on('change', function () {
         // Do the necessary to enable or disable the Service Worker
         setContentInjectionMode(this.value);
     });
@@ -502,7 +502,7 @@ define(['jquery', 'zimArchiveLoader', 'uiUtil', 'settingsStore','abstractFilesys
     document.getElementById('disableDragAndDropCheck').addEventListener('change', function () {
         params.disableDragAndDrop = !!this.checked;
         settingsStore.setItem('disableDragAndDrop', params.disableDragAndDrop, Infinity);
-        uiUtil.systemAlert('<p>We will now attempt to reload the app to apply the new setting.</p>' + 
+        uiUtil.systemAlert('<p>We will now attempt to reload the app to apply the new setting.</p>' +
             '<p>(If you cancel, then the setting will only be applied when you next start the app.)</p>', 'Reload app', true).then(function (result) {
             if (result) {
                 window.location.reload();
@@ -550,12 +550,12 @@ define(['jquery', 'zimArchiveLoader', 'uiUtil', 'settingsStore','abstractFilesys
         }
     });
     var titleSearchRangeVal = document.getElementById('titleSearchRangeVal');
-    document.getElementById('titleSearchRange').addEventListener('change', function(e) {
+    document.getElementById('titleSearchRange').addEventListener('change', function (e) {
         settingsStore.setItem('maxSearchResultsSize', e.target.value, Infinity);
         params.maxSearchResultsSize = e.target.value;
         titleSearchRangeVal.textContent = e.target.value;
     });
-    document.getElementById('titleSearchRange').addEventListener('input', function(e) {
+    document.getElementById('titleSearchRange').addEventListener('input', function (e) {
         titleSearchRangeVal.textContent = e.target.value;
     });
     document.getElementById('modesLink').addEventListener('click', function () {
@@ -572,25 +572,25 @@ define(['jquery', 'zimArchiveLoader', 'uiUtil', 'settingsStore','abstractFilesys
         console.log('Checking for updates to the PWA...');
         uiUtil.checkUpdateStatus(appstate);
     }, 10000);
-    
-    //Adds an event listener to kiwix logo and bottom navigation bar which gets triggered when these elements are dragged.
-    //Returning false prevents their dragging (which can cause some unexpected behavior)
-    //Doing that in javascript is the only way to make it cross-browser compatible
-    document.getElementById('kiwixLogo').ondragstart=function () {return false;}
-    document.getElementById('navigationButtons').ondragstart=function () {return false;}
-
-    //focus search bar (#prefix) if Home key is pressed
-    function focusPrefixOnHomeKey(event) {
-        //check if home key is pressed
+
+    // Adds an event listener to kiwix logo and bottom navigation bar which gets triggered when these elements are dragged.
+    // Returning false prevents their dragging (which can cause some unexpected behavior)
+    // Doing that in javascript is the only way to make it cross-browser compatible
+    document.getElementById('kiwixLogo').ondragstart = function () { return false; }
+    document.getElementById('navigationButtons').ondragstart = function () { return false; }
+
+    // focus search bar (#prefix) if Home key is pressed
+    function focusPrefixOnHomeKey (event) {
+        // check if home key is pressed
         if (event.key === 'Home') {
             // wait to prevent interference with scrolling (default action)
-            setTimeout(function() {
+            setTimeout(function () {
                 document.getElementById('prefix').focus();
-            },0);
+            }, 0);
         }
     }
-    //switch on/off the feature to use Home Key to focus search bar
-    function switchHomeKeyToFocusSearchBar() {
+    // switch on/off the feature to use Home Key to focus search bar
+    function switchHomeKeyToFocusSearchBar () {
         var iframeContentWindow = document.getElementById('articleContent').contentWindow;
         // Test whether iframe is accessible (because if not, we do not want to throw an error at this point, before we can tell the user what is wrong)
         var isIframeAccessible = true;
@@ -603,15 +603,15 @@ define(['jquery', 'zimArchiveLoader', 'uiUtil', 'settingsStore','abstractFilesys
         if (!isIframeAccessible) return;
         // when the feature is in active state
         if (params.useHomeKeyToFocusSearchBar) {
-            //Handle Home key press inside window(outside iframe) to focus #prefix
+            // Handle Home key press inside window(outside iframe) to focus #prefix
             window.addEventListener('keydown', focusPrefixOnHomeKey);
-            //only for initial empty iFrame loaded using `src` attribute
-            //in any other case listener gets removed on reloading of iFrame content
+            // only for initial empty iFrame loaded using `src` attribute
+            // in any other case listener gets removed on reloading of iFrame content
             iframeContentWindow.addEventListener('keydown', focusPrefixOnHomeKey);
         } else {
              // When the feature is not active, remove event listener for window (outside iframe)
             window.removeEventListener('keydown', focusPrefixOnHomeKey);
-            //if feature is deactivated and no zim content is loaded yet
+            // if feature is deactivated and no zim content is loaded yet
             iframeContentWindow.removeEventListener('keydown', focusPrefixOnHomeKey);
         }
     }
@@ -619,7 +619,7 @@ define(['jquery', 'zimArchiveLoader', 'uiUtil', 'settingsStore','abstractFilesys
     /**
      * Checks whether we need to display an alert that the default Content Injection Mode has now been switched to ServiceWorker Mode
      */
-    function checkAndDisplayInjectionModeChangeAlert() {
+    function checkAndDisplayInjectionModeChangeAlert () {
         var message;
         if (!params.defaultModeChangeAlertDisplayed && isServiceWorkerAvailable() && isServiceWorkerReady()) {
             message = ['<p>We have switched you to ServiceWorker mode (this is now the default). ' +
@@ -650,7 +650,7 @@ define(['jquery', 'zimArchiveLoader', 'uiUtil', 'settingsStore','abstractFilesys
     /**
      * Displays or refreshes the API status shown to the user
      */
-    function refreshAPIStatus() {
+    function refreshAPIStatus () {
         var apiStatusPanel = document.getElementById('apiStatusDiv');
         apiStatusPanel.classList.remove('card-success', 'card-warning', 'card-danger');
         var apiPanelClass = 'card-success';
@@ -701,7 +701,7 @@ define(['jquery', 'zimArchiveLoader', 'uiUtil', 'settingsStore','abstractFilesys
         }
         apiName = params.decompressorAPI.errorStatus || apiName || 'Not initialized';
         // innerHTML is used here because the API name may contain HTML entities like &nbsp;
-        decompAPIStatusDiv.innerHTML = 'Decompressor API: ' + apiName ;
+        decompAPIStatusDiv.innerHTML = 'Decompressor API: ' + apiName;
         // Update Search Provider
         uiUtil.reportSearchProviderToAPIStatusPanel(params.searchProvider);
         // Update PWA origin
@@ -721,7 +721,7 @@ define(['jquery', 'zimArchiveLoader', 'uiUtil', 'settingsStore','abstractFilesys
      * If Service Worker is not available, the attributes of the memory cache are returned instead
      * @returns {Promise<Object>} A Promise for an object with cache attributes 'type', 'description', and 'count'
      */
-    function getAssetsCacheAttributes() {
+    function getAssetsCacheAttributes () {
         return new Promise(function (resolve, reject) {
             if (params.contentInjectionMode === 'serviceworker' && navigator.serviceWorker && navigator.serviceWorker.controller) {
                 // Create a Message Channel
@@ -755,11 +755,11 @@ define(['jquery', 'zimArchiveLoader', 'uiUtil', 'settingsStore','abstractFilesys
     /**
      * Refreshes the UI (Configuration) with the cache attributes obtained from getAssetsCacheAttributes()
      */
-    function refreshCacheStatus() {
+    function refreshCacheStatus () {
         // Update radio buttons and checkbox
         document.getElementById('cachedAssetsModeRadio' + (params.assetsCache ? 'True' : 'False')).checked = true;
         // Change app's background colour if the bypass appCacche setting is enabled, as a visible warning
-        if (params.appCache) {    
+        if (params.appCache) {
             document.documentElement.style.removeProperty('background');
         } else {
             document.documentElement.style.background = /^dark/.test(document.documentElement.dataset.theme) ? '#300000' : 'mistyrose';
@@ -792,7 +792,7 @@ define(['jquery', 'zimArchiveLoader', 'uiUtil', 'settingsStore','abstractFilesys
      * This MessageChannel allows a 2-way communication between the ServiceWorker
      * and the application
      */
-    function initOrKeepAliveServiceWorker() {
+    function initOrKeepAliveServiceWorker () {
         var delay = DELAY_BETWEEN_KEEPALIVE_SERVICEWORKER;
         if (params.contentInjectionMode === 'serviceworker') {
             // Create a new messageChannel
@@ -824,7 +824,7 @@ define(['jquery', 'zimArchiveLoader', 'uiUtil', 'settingsStore','abstractFilesys
      *
      * @param {String} value The chosen content injection mode : 'jquery' or 'serviceworker'
      */
-    function setContentInjectionMode(value) {
+    function setContentInjectionMode (value) {
         params.oldInjectionMode = params.serviceWorkerLocal ? 'serviceworkerlocal' : params.contentInjectionMode;
         params.serviceWorkerLocal = false;
         if (value === 'serviceworkerlocal') {
@@ -927,7 +927,7 @@ define(['jquery', 'zimArchiveLoader', 'uiUtil', 'settingsStore','abstractFilesys
                             // We need to wait for the ServiceWorker to be activated
                             // before sending the first init message
                             var serviceWorker = reg.installing || reg.waiting || reg.active;
-                            serviceWorker.addEventListener('statechange', function(statechangeevent) {
+                            serviceWorker.addEventListener('statechange', function (statechangeevent) {
                                 if (statechangeevent.target.state === 'activated') {
                                     // Remove any jQuery hooks from a previous jQuery session
                                     $('#articleContent').contents().remove();
@@ -996,7 +996,7 @@ define(['jquery', 'zimArchiveLoader', 'uiUtil', 'settingsStore','abstractFilesys
      * https://developer.mozilla.org/en-US/docs/Web/API/ServiceWorker
      * @returns {Boolean}
      */
-    function isServiceWorkerAvailable() {
+    function isServiceWorkerAvailable () {
         return ('serviceWorker' in navigator);
     }
 
@@ -1005,8 +1005,8 @@ define(['jquery', 'zimArchiveLoader', 'uiUtil', 'settingsStore','abstractFilesys
      * https://developer.mozilla.org/en-US/docs/Web/API/MessageChannel
      * @returns {Boolean}
      */
-    function isMessageChannelAvailable() {
-        try{
+    function isMessageChannelAvailable () {
+        try {
             var dummyMessageChannel = new MessageChannel();
             if (dummyMessageChannel) return true;
         } catch (e) {
@@ -1020,7 +1020,7 @@ define(['jquery', 'zimArchiveLoader', 'uiUtil', 'settingsStore','abstractFilesys
      * and inject content in articles.
      * @returns {Boolean}
      */
-    function isServiceWorkerReady() {
+    function isServiceWorkerReady () {
         // Return true if the serviceWorkerRegistration is not null and not undefined
         return (serviceWorkerRegistration);
     }
@@ -1034,7 +1034,7 @@ define(['jquery', 'zimArchiveLoader', 'uiUtil', 'settingsStore','abstractFilesys
             : ('<p>We shall attempt to switch you to ServiceWorker mode (this is now the default). ' +
             'It supports more types of ZIM archives and is much more robust.</p><p>We ');
         message += 'need one-time access to our secure server so that the app can re-launch as a Progressive Web App (PWA). ' +
-            'If available, the PWA will work offline, but will auto-update periodically when online as per the ' + 
+            'If available, the PWA will work offline, but will auto-update periodically when online as per the ' +
             'Service Worker spec.</p><p>You can switch back any time by returning to JQuery mode.</p>' +
             '<p>WARNING: This will attempt to access the following server:<br/>' + params.PWAServer + '</p>';
         var launchPWA = function () {
@@ -1103,7 +1103,7 @@ define(['jquery', 'zimArchiveLoader', 'uiUtil', 'settingsStore','abstractFilesys
      * @type Array.<StorageFirefoxOS>
      */
     var storages = [];
-    function searchForArchivesInPreferencesOrStorage() {
+    function searchForArchivesInPreferencesOrStorage () {
         // First see if the list of archives is stored in the Settings Store
         var listOfArchivesFromSettingsStore = settingsStore.getItem('listOfArchives');
         if (listOfArchivesFromSettingsStore !== null && listOfArchivesFromSettingsStore !== undefined && listOfArchivesFromSettingsStore !== '') {
@@ -1113,7 +1113,7 @@ define(['jquery', 'zimArchiveLoader', 'uiUtil', 'settingsStore','abstractFilesys
             searchForArchivesInStorage();
         }
     }
-    function searchForArchivesInStorage() {
+    function searchForArchivesInStorage () {
         // If DeviceStorage is available, we look for archives in it
         document.getElementById('btnConfigure').click();
         document.getElementById('scanningForArchives').style.display = '';
@@ -1139,7 +1139,7 @@ define(['jquery', 'zimArchiveLoader', 'uiUtil', 'settingsStore','abstractFilesys
     } else {
         // If DeviceStorage is not available, we display the file select components
         displayFileSelect();
-        if (document.getElementById('archiveFiles').files && document.getElementById('archiveFiles').files.length>0) {
+        if (document.getElementById('archiveFiles').files && document.getElementById('archiveFiles').files.length > 0) {
             // Archive files are already selected,
             setLocalArchiveFromFileSelect();
         } else {
@@ -1148,7 +1148,7 @@ define(['jquery', 'zimArchiveLoader', 'uiUtil', 'settingsStore','abstractFilesys
     }
 
     // Display the article when the user goes back in the browser history
-    window.onpopstate = function(event) {
+    window.onpopstate = function (event) {
         if (event.state) {
             var title = event.state.title;
             var titleSearch = event.state.titleSearch;
@@ -1177,7 +1177,7 @@ define(['jquery', 'zimArchiveLoader', 'uiUtil', 'settingsStore','abstractFilesys
      * Populate the drop-down list of archives with the given list
      * @param {Array.<String>} archiveDirectories
      */
-    function populateDropDownListOfArchives(archiveDirectories) {
+    function populateDropDownListOfArchives (archiveDirectories) {
         document.getElementById('scanningForArchives').style.display = 'none';
         document.getElementById('chooseArchiveFromLocalStorage').style.display = '';
         var comboArchiveList = document.getElementById('archiveList');
@@ -1198,7 +1198,7 @@ define(['jquery', 'zimArchiveLoader', 'uiUtil', 'settingsStore','abstractFilesys
             var lastSelectedArchive = settingsStore.getItem('lastSelectedArchive');
             if (lastSelectedArchive !== null && lastSelectedArchive !== undefined && lastSelectedArchive !== '') {
                 // Attempt to select the corresponding item in the list, if it exists
-                if ($("#archiveList option[value='"+lastSelectedArchive+"']").length > 0) {
+                if ($("#archiveList option[value='" + lastSelectedArchive + "']").length > 0) {
                     document.getElementById('archiveList').value = lastSelectedArchive;
                 }
             }
@@ -1219,7 +1219,7 @@ define(['jquery', 'zimArchiveLoader', 'uiUtil', 'settingsStore','abstractFilesys
     /**
      * Sets the localArchive from the selected archive in the drop-down list
      */
-    function setLocalArchiveFromArchiveList() {
+    function setLocalArchiveFromArchiveList () {
         var archiveDirectory = document.getElementById('archiveList').value;
         if (archiveDirectory && archiveDirectory.length > 0) {
             // Now, try to find which DeviceStorage has been selected by the user
@@ -1227,9 +1227,9 @@ define(['jquery', 'zimArchiveLoader', 'uiUtil', 'settingsStore','abstractFilesys
             var regexpStorageName = /^\/([^/]+)\//;
             var regexpResults = regexpStorageName.exec(archiveDirectory);
             var selectedStorage = null;
-            if (regexpResults && regexpResults.length>0) {
+            if (regexpResults && regexpResults.length > 0) {
                 var selectedStorageName = regexpResults[1];
-                for (var i=0; i<storages.length; i++) {
+                for (var i = 0; i < storages.length; i++) {
                     var storage = storages[i];
                     if (selectedStorageName === storage.storageName) {
                         // We found the selected storage
@@ -1266,7 +1266,7 @@ define(['jquery', 'zimArchiveLoader', 'uiUtil', 'settingsStore','abstractFilesys
     /**
      * Resets the CSS Cache (used only in jQuery mode)
      */
-    function resetCssCache() {
+    function resetCssCache () {
         // Reset the cssCache. Must be done when archive changes.
         if (cssCache) {
             cssCache = new Map();
@@ -1276,16 +1276,16 @@ define(['jquery', 'zimArchiveLoader', 'uiUtil', 'settingsStore','abstractFilesys
     /**
      * Displays the zone to select files from the archive
      */
-    function displayFileSelect() {
+    function displayFileSelect () {
         document.getElementById('openLocalFiles').style.display = 'block';
         // Set the main drop zone
         if (!params.disableDragAndDrop) {
             configDropZone.addEventListener('dragover', handleGlobalDragover);
-            configDropZone.addEventListener('dragleave', function() {
+            configDropZone.addEventListener('dragleave', function () {
                 configDropZone.style.border = '';
             });
             // Also set a global drop zone (allows us to ensure Config is always displayed for the file drop)
-            globalDropZone.addEventListener('dragover', function(e) {
+            globalDropZone.addEventListener('dragover', function (e) {
                 e.preventDefault();
                 if (configDropZone.style.display === 'none') document.getElementById('btnConfigure').click();
                 e.dataTransfer.dropEffect = 'link';
@@ -1296,24 +1296,24 @@ define(['jquery', 'zimArchiveLoader', 'uiUtil', 'settingsStore','abstractFilesys
         document.getElementById('archiveFiles').addEventListener('change', setLocalArchiveFromFileSelect);
     }
 
-    function handleGlobalDragover(e) {
+    function handleGlobalDragover (e) {
         e.preventDefault();
         e.dataTransfer.dropEffect = 'link';
         configDropZone.style.border = '3px dotted red';
     }
 
-    function handleIframeDragover(e) {
+    function handleIframeDragover (e) {
         e.preventDefault();
         e.dataTransfer.dropEffect = 'link';
         document.getElementById('btnConfigure').click();
     }
 
-    function handleIframeDrop(e) {
+    function handleIframeDrop (e) {
         e.stopPropagation();
         e.preventDefault();
     }
 
-    function handleFileDrop(packet) {
+    function handleFileDrop (packet) {
         packet.stopPropagation();
         packet.preventDefault();
         configDropZone.style.border = '';
@@ -1327,13 +1327,13 @@ define(['jquery', 'zimArchiveLoader', 'uiUtil', 'settingsStore','abstractFilesys
     }
 
     // Add event listener to link which allows user to show file selectors
-    document.getElementById('selectorsDisplayLink').addEventListener('click', function(e) {
+    document.getElementById('selectorsDisplayLink').addEventListener('click', function (e) {
         e.preventDefault();
         document.getElementById('openLocalFiles').style.display = 'block';
         document.getElementById('selectorsDisplay').style.display = 'none';
     });
 
-    function setLocalArchiveFromFileList(files) {
+    function setLocalArchiveFromFileList (files) {
         // Check for usable file types
         for (var i = files.length; i--;) {
             // DEV: you can support other file types by adding (e.g.) '|dat|idx' after 'zim\w{0,2}'
@@ -1356,7 +1356,7 @@ define(['jquery', 'zimArchiveLoader', 'uiUtil', 'settingsStore','abstractFilesys
     /**
      * Sets the localArchive from the File selects populated by user
      */
-    function setLocalArchiveFromFileSelect() {
+    function setLocalArchiveFromFileSelect () {
         setLocalArchiveFromFileList(document.getElementById('archiveFiles').files);
     }
 
@@ -1367,7 +1367,7 @@ define(['jquery', 'zimArchiveLoader', 'uiUtil', 'settingsStore','abstractFilesys
      * @param {String} url The URL of the archive to read
      * @returns {Promise<Blob>} A promise for the requested file (blob)
      */
-    function readRemoteArchive(url) {
+    function readRemoteArchive (url) {
         return new Promise(function (resolve, reject) {
             var request = new XMLHttpRequest();
             request.open('GET', url);
@@ -1408,7 +1408,7 @@ define(['jquery', 'zimArchiveLoader', 'uiUtil', 'settingsStore','abstractFilesys
      * Handle key input in the prefix input zone
      * @param {Event} evt The event data to handle
      */
-    function onKeyUpPrefix() {
+    function onKeyUpPrefix () {
         // Use a timeout, so that very quick typing does not cause a lot of overhead
         // It is also necessary for the words suggestions to work inside Firefox OS
         if (window.timeoutKeyUpPrefix) {
@@ -1427,7 +1427,7 @@ define(['jquery', 'zimArchiveLoader', 'uiUtil', 'settingsStore','abstractFilesys
      * with a binary search inside the index file)
      * @param {String} prefix The string that must appear at the start of any title searched for
      */
-    function searchDirEntriesFromPrefix(prefix) {
+    function searchDirEntriesFromPrefix (prefix) {
         if (selectedArchive !== null && selectedArchive.isReady()) {
             // Cancel the old search (zimArchive search object will receive this change)
             appstate.search.status = 'cancelled';
@@ -1455,7 +1455,7 @@ define(['jquery', 'zimArchiveLoader', 'uiUtil', 'settingsStore','abstractFilesys
      * @param {Array} dirEntryArray The array of dirEntries returned from the binary search
      * @param {Object} reportingSearch The reporting search object
      */
-    function populateListOfArticles(dirEntryArray, reportingSearch) {
+    function populateListOfArticles (dirEntryArray, reportingSearch) {
         // Do not allow cancelled searches to report
         if (reportingSearch.status === 'cancelled') return;
         var stillSearching = reportingSearch.status === 'interim';
@@ -1508,7 +1508,7 @@ define(['jquery', 'zimArchiveLoader', 'uiUtil', 'settingsStore','abstractFilesys
      * @param {Event} event The click event to handle
      * @returns {Boolean} Always returns false for JQuery event handling
      */
-    function handleTitleClick(event) {
+    function handleTitleClick (event) {
         var dirEntryId = decodeURIComponent(event.target.getAttribute('dirEntryId'));
         findDirEntryFromDirEntryIdAndLaunchArticleRead(dirEntryId);
         return false;
@@ -1519,7 +1519,7 @@ define(['jquery', 'zimArchiveLoader', 'uiUtil', 'settingsStore','abstractFilesys
      * and call the function to read the corresponding article
      * @param {String} dirEntryId The stringified Directory Entry to parse and launch
      */
-    function findDirEntryFromDirEntryIdAndLaunchArticleRead(dirEntryId) {
+    function findDirEntryFromDirEntryIdAndLaunchArticleRead (dirEntryId) {
         if (selectedArchive.isReady()) {
             var dirEntry = selectedArchive.parseDirEntryId(dirEntryId);
             // Remove focus from search field to hide keyboard and to allow navigation keys to be used
@@ -1540,7 +1540,7 @@ define(['jquery', 'zimArchiveLoader', 'uiUtil', 'settingsStore','abstractFilesys
      * Check whether the given URL from given dirEntry equals the expectedArticleURLToBeDisplayed
      * @param {DirEntry} dirEntry The directory entry of the article to read
      */
-    function isDirEntryExpectedToBeDisplayed(dirEntry) {
+    function isDirEntryExpectedToBeDisplayed (dirEntry) {
         var curArticleURL = dirEntry.namespace + '/' + dirEntry.url;
 
         if (expectedArticleURLToBeDisplayed !== curArticleURL) {
@@ -1557,12 +1557,12 @@ define(['jquery', 'zimArchiveLoader', 'uiUtil', 'settingsStore','abstractFilesys
     // wombatScript.type = 'text/javascript';
     // wombatScript.src = document.location.href.replace(/[^/]+$/, '') + 'js/lib/wombat.js';
     // document.head.appendChild(wombatScript);
-    
+
     /**
      * Read the article corresponding to the given dirEntry
      * @param {DirEntry} dirEntry The directory entry of the article to read
      */
-    function readArticle(dirEntry) {
+    function readArticle (dirEntry) {
         // Reset search prefix to allow users to search the same string again if they want to
         appstate.search.prefix = '';
         // Only update for expectedArticleURLToBeDisplayed.
@@ -1594,7 +1594,7 @@ define(['jquery', 'zimArchiveLoader', 'uiUtil', 'settingsStore','abstractFilesys
                 // }
                 // var innerHtml = iframeArticleContent.contentDocument.documentElement.innerHTML;
                 // innerHtml = Wombat.rewriteHtml(innerHtml);
-                // iframeArticleContent.contentDocument.documentElement.innerHTML = innerHtml; 
+                // iframeArticleContent.contentDocument.documentElement.innerHTML = innerHtml;
                 // Set the requested appTheme
                 uiUtil.applyAppTheme(params.appTheme);
                 // Display the iframe content
@@ -1638,7 +1638,7 @@ define(['jquery', 'zimArchiveLoader', 'uiUtil', 'settingsStore','abstractFilesys
                         // remove eventListener to avoid memory leaks
                         iframeArticleContent.contentWindow.removeEventListener('keydown', focusPrefixOnHomeKey);
                         var articleList = document.getElementById('articleList');
-                        var articleListHeaderMessage =  document.getElementById('articleListHeaderMessage');
+                        var articleListHeaderMessage = document.getElementById('articleListHeaderMessage');
                         while (articleList.firstChild) articleList.removeChild(articleList.firstChild);
                         while (articleListHeaderMessage.firstChild) articleListHeaderMessage.removeChild(articleListHeaderMessage.firstChild);
                         document.getElementById('articleListWithHeader').style.display = 'none';
@@ -1655,13 +1655,12 @@ define(['jquery', 'zimArchiveLoader', 'uiUtil', 'settingsStore','abstractFilesys
             var zimitPrefix = '';
             if (selectedArchive._file.zimType === 'zimit' && /[CA]/.test(dirEntry.namespace)) {
                 zimitPrefix = 'mp_/';
-                encodedUrl =  'https://' + encodeURI(dirEntry.url);
+                encodedUrl = 'https://' + encodeURI(dirEntry.url);
             }
             // We put the ZIM filename as a prefix in the URL, so that browser caches are separate for each ZIM file
-            iframeArticleContent.src = "../" + selectedArchive._file.name + "/" + dirEntry.namespace + "/" + zimitPrefix + encodedUrl;
+            iframeArticleContent.src = '../' + selectedArchive._file.name + '/' + dirEntry.namespace + '/' + zimitPrefix + encodedUrl;
             // Wombat = new window._WBWombat(iframeArticleContent.contentWindow, {});
             // Wombat.initIframeWombat(iframeArticleContent);
-                
         } else {
             // In jQuery mode, we read the article content in the backend and manually insert it in the iframe
             if (dirEntry.isRedirect()) {
@@ -1681,7 +1680,7 @@ define(['jquery', 'zimArchiveLoader', 'uiUtil', 'settingsStore','abstractFilesys
      *
      * @param {Event} event The event object of the message channel
      */
-    function handleMessageChannelMessage(event) {
+    function handleMessageChannelMessage (event) {
         if (event.data.error) {
             console.error('Error in MessageChannel', event.data.error);
             throw event.data.error;
@@ -1749,7 +1748,7 @@ define(['jquery', 'zimArchiveLoader', 'uiUtil', 'settingsStore','abstractFilesys
 
     // A string to hold any anchor parameter in clicked ZIM URLs (as we must strip these to find the article in the ZIM)
     var anchorParameter;
-    
+
     /**
      * Display the the given HTML article in the web page,
      * and convert links to javascript calls
@@ -1757,8 +1756,8 @@ define(['jquery', 'zimArchiveLoader', 'uiUtil', 'settingsStore','abstractFilesys
      * @param {DirEntry} dirEntry
      * @param {String} htmlArticle
      */
-    function displayArticleContentInIframe(dirEntry, htmlArticle) {
-        if(! isDirEntryExpectedToBeDisplayed(dirEntry)){
+    function displayArticleContentInIframe (dirEntry, htmlArticle) {
+        if (!isDirEntryExpectedToBeDisplayed(dirEntry)) {
             return;
         }
         // Display Bootstrap warning alert if the landing page contains active content
@@ -1777,7 +1776,7 @@ define(['jquery', 'zimArchiveLoader', 'uiUtil', 'settingsStore','abstractFilesys
         // Replaces ZIM-style URLs of img, script, link and media tags with a data-kiwixurl to prevent 404 errors [kiwix-js #272 #376]
         // This replacement also processes the URL relative to the page's ZIM URL so that we can find the ZIM URL of the asset
         // with the correct namespace (this works for old-style -,I,J namespaces and for new-style C namespace)
-        htmlArticle = htmlArticle.replace(regexpTagsWithZimUrl, function(match, blockStart, equals, quote, relAssetUrl) {
+        htmlArticle = htmlArticle.replace(regexpTagsWithZimUrl, function (match, blockStart, equals, quote, relAssetUrl) {
             var assetZIMUrl = uiUtil.deriveZimUrlFromRelativeUrl(relAssetUrl, baseUrl);
             // DEV: Note that deriveZimUrlFromRelativeUrl produces a *decoded* URL (and incidentally would remove any URI component
             // if we had captured it). We therefore re-encode the URI with encodeURI (which does not encode forward slashes) instead
@@ -1801,10 +1800,10 @@ define(['jquery', 'zimArchiveLoader', 'uiUtil', 'settingsStore','abstractFilesys
 
         var iframeArticleContent = document.getElementById('articleContent');
 
-        iframeArticleContent.onload = function() {
-            iframeArticleContent.onload = function(){};
+        iframeArticleContent.onload = function () {
+            iframeArticleContent.onload = function () {};
             var articleList = document.getElementById('articleList');
-            var articleListHeaderMessage =  document.getElementById('articleListHeaderMessage');
+            var articleListHeaderMessage = document.getElementById('articleListHeaderMessage');
             while (articleList.firstChild) articleList.removeChild(articleList.firstChild);
             while (articleListHeaderMessage.firstChild) articleListHeaderMessage.removeChild(articleListHeaderMessage.firstChild);
             document.getElementById('articleListWithHeader').style.display = 'none';
@@ -1849,7 +1848,7 @@ define(['jquery', 'zimArchiveLoader', 'uiUtil', 'settingsStore','abstractFilesys
             // NB : if javascript is properly handled in jQuery mode in the future, this call should be removed
             // and noscript tags should be ignored
             loadNoScriptTags();
-            //loadJavaScriptJQuery();
+            // loadJavaScriptJQuery();
             loadCSSJQuery();
             insertMediaBlobsJQuery();
             // Jump to any anchor parameter
@@ -1871,7 +1870,7 @@ define(['jquery', 'zimArchiveLoader', 'uiUtil', 'settingsStore','abstractFilesys
         // Load the blank article to clear the iframe (NB iframe onload event runs *after* this)
         iframeArticleContent.src = 'article.html';
 
-        function parseAnchorsJQuery() {
+        function parseAnchorsJQuery () {
             var currentProtocol = location.protocol;
             var currentHost = location.host;
             // Percent-encode dirEntry.url and add regex escape character \ to the RegExp special characters - see https://www.regular-expressions.info/characters.html;
@@ -1900,7 +1899,7 @@ define(['jquery', 'zimArchiveLoader', 'uiUtil', 'settingsStore','abstractFilesys
                 } else if ((anchor.protocol !== currentProtocol ||
                     anchor.host !== currentHost) && params.openExternalLinksInNewTabs) {
                     // It's an external URL : we should open it in a new tab
-                    anchor.addEventListener('click', function(event) {
+                    anchor.addEventListener('click', function (event) {
                         // Find the closest enclosing A tag
                         var clickedAnchor = uiUtil.closestAnchorEnclosingElement(event.target);
                         uiUtil.warnAndOpenExternalLinkInNewTab(event, clickedAnchor);
@@ -1935,7 +1934,7 @@ define(['jquery', 'zimArchiveLoader', 'uiUtil', 'settingsStore','abstractFilesys
             });
         }
 
-        function loadImagesJQuery() {
+        function loadImagesJQuery () {
             // Make an array from the images that need to be processed
             var images = Array.prototype.slice.call(iframeArticleContent.contentDocument.querySelectorAll('img[data-kiwixurl]'));
             // This ensures cancellation of image extraction if the user navigates away from the page before extraction has finished
@@ -1943,7 +1942,7 @@ define(['jquery', 'zimArchiveLoader', 'uiUtil', 'settingsStore','abstractFilesys
             // DEV: This self-invoking function is recursive, calling itself only when an image has been fully processed into a
             // blob: or data: URI (or returns an error). This ensures that images are processed sequentially from the top of the
             // DOM, making for a better user experience (because images above the fold are extracted first)
-            (function extractImage() {
+            (function extractImage () {
                 if (!images.length || images.busy || images.owner !== expectedArticleURLToBeDisplayed) return;
                 images.busy = true;
                 // Extract the image at the top of the images array and remove it from the array
@@ -1960,7 +1959,7 @@ define(['jquery', 'zimArchiveLoader', 'uiUtil', 'settingsStore','abstractFilesys
                 selectedArchive.getDirEntryByPath(url).then(function (dirEntry) {
                     selectedArchive.readBinaryFile(dirEntry, function (fileDirEntry, content) {
                         var mimetype = dirEntry.getMimetype();
-                        uiUtil.feedNodeWithDataURI(image, 'src', content, mimetype, function() {
+                        uiUtil.feedNodeWithDataURI(image, 'src', content, mimetype, function () {
                             images.busy = false;
                             extractImage();
                         });
@@ -1973,7 +1972,7 @@ define(['jquery', 'zimArchiveLoader', 'uiUtil', 'settingsStore','abstractFilesys
             })();
         }
 
-        function loadNoScriptTags() {
+        function loadNoScriptTags () {
             // For each noscript tag, we replace it with its content, so that the browser interprets it
             $('#articleContent').contents().find('noscript').replaceWith(function () {
                 // When javascript is enabled, browsers interpret the content of noscript tags as text
@@ -1983,7 +1982,7 @@ define(['jquery', 'zimArchiveLoader', 'uiUtil', 'settingsStore','abstractFilesys
             });
         }
 
-        function loadCSSJQuery() {
+        function loadCSSJQuery () {
             // Ensure all sections are open for clients that lack JavaScript support, or that have some restrictive CSP [kiwix-js #355].
             // This is needed only for some versions of ZIM files generated by mwoffliner (at least in early 2018), where the article sections are closed by default on small screens.
             // These sections can be opened by clicking on them, but this is done with some javascript.
@@ -2034,7 +2033,7 @@ define(['jquery', 'zimArchiveLoader', 'uiUtil', 'settingsStore','abstractFilesys
 
             // Some pages are extremely heavy to render, so we prevent rendering by keeping the iframe hidden
             // until all CSS content is available [kiwix-js #381]
-            function renderIfCSSFulfilled(title) {
+            function renderIfCSSFulfilled (title) {
                 if (cssFulfilled >= cssCount) {
                     document.getElementById('cachingAssets').textContent = 'Caching assets...';
                     document.getElementById('cachingAssets').style.display = 'none';
@@ -2075,10 +2074,10 @@ define(['jquery', 'zimArchiveLoader', 'uiUtil', 'settingsStore','abstractFilesys
         //     });
         // }
 
-        function insertMediaBlobsJQuery() {
+        function insertMediaBlobsJQuery () {
             var iframe = iframeArticleContent.contentDocument;
             Array.prototype.slice.call(iframe.querySelectorAll('video, audio, source, track'))
-            .forEach(function(mediaSource) {
+            .forEach(function (mediaSource) {
                 var source = mediaSource.getAttribute('src');
                 source = source ? uiUtil.deriveZimUrlFromRelativeUrl(source, baseUrl) : null;
                 // We have to exempt text tracks from using deriveZimUrlFromRelativeurl due to a bug in Firefox [kiwix-js #496]
@@ -2090,7 +2089,7 @@ define(['jquery', 'zimArchiveLoader', 'uiUtil', 'settingsStore','abstractFilesys
                 var mediaElement = /audio|video/i.test(mediaSource.tagName) ? mediaSource : mediaSource.parentElement;
                 // If the "controls" property is missing, we need to add it to ensure jQuery-only users can operate the video. See kiwix-js #760.
                 if (/audio|video/i.test(mediaElement.tagName) && !mediaElement.hasAttribute('controls')) mediaElement.setAttribute('controls', '');
-                selectedArchive.getDirEntryByPath(source).then(function(dirEntry) {
+                selectedArchive.getDirEntryByPath(source).then(function (dirEntry) {
                     return selectedArchive.readBinaryFile(dirEntry, function (fileDirEntry, mediaArray) {
                         var mimeType = mediaSource.type ? mediaSource.type : dirEntry.getMimetype();
                         var blob = new Blob([mediaArray], { type: mimeType });
@@ -2109,11 +2108,11 @@ define(['jquery', 'zimArchiveLoader', 'uiUtil', 'settingsStore','abstractFilesys
      * Displays a message to the user that a style or other asset is being cached
      * @param {String} title The title of the file to display in the caching message block
      */
-    function updateCacheStatus(title) {
+    function updateCacheStatus (title) {
         if (params.assetsCache && /\.css$|\.js$/i.test(title)) {
             var cacheBlock = document.getElementById('cachingAssets');
             cacheBlock.style.display = 'block';
-            title = title.replace(/[^/]+\//g, '').substring(0,18);
+            title = title.replace(/[^/]+\//g, '').substring(0, 18);
             cacheBlock.textContent = 'Caching ' + title + '...';
         }
     }
@@ -2124,7 +2123,7 @@ define(['jquery', 'zimArchiveLoader', 'uiUtil', 'settingsStore','abstractFilesys
      * @param {String} title
      * @param {String} titleSearch
      */
-    function pushBrowserHistoryState(title, titleSearch) {
+    function pushBrowserHistoryState (title, titleSearch) {
         var stateObj = {};
         var urlParameters;
         var stateLabel;
@@ -2152,9 +2151,9 @@ define(['jquery', 'zimArchiveLoader', 'uiUtil', 'settingsStore','abstractFilesys
      *     be used to save the file in local FS (in HTML5 spec, a string value for the download attribute is optional)
      * @param {String} contentType The mimetype of the downloadable file, if known
      */
-    function goToArticle(path, download, contentType) {
+    function goToArticle (path, download, contentType) {
         document.getElementById('searchingArticles').style.display = '';
-        selectedArchive.getDirEntryByPath(path).then(function(dirEntry) {
+        selectedArchive.getDirEntryByPath(path).then(function (dirEntry) {
             var mimetype = contentType || dirEntry ? dirEntry.getMimetype() : '';
             if (dirEntry === null || dirEntry === undefined) {
                 document.getElementById('searchingArticles').style.display = 'none';
@@ -2173,7 +2172,7 @@ define(['jquery', 'zimArchiveLoader', 'uiUtil', 'settingsStore','abstractFilesys
         }).catch(function (e) { uiUtil.systemAlert('Error reading article with url ' + path + ' : ' + e, 'Error while reading article'); });
     }
 
-    function goToRandomArticle() {
+    function goToRandomArticle () {
         if (selectedArchive !== null && selectedArchive.isReady()) {
             document.getElementById('searchingArticles').style.display = '';
             selectedArchive.getRandomDirEntry(function (dirEntry) {
@@ -2205,9 +2204,9 @@ define(['jquery', 'zimArchiveLoader', 'uiUtil', 'settingsStore','abstractFilesys
         }
     }
 
-    function goToMainArticle() {
+    function goToMainArticle () {
         document.getElementById('searchingArticles').style.display = '';
-        selectedArchive.getMainPageDirEntry(function(dirEntry) {
+        selectedArchive.getMainPageDirEntry(function (dirEntry) {
             if (dirEntry === null || dirEntry === undefined) {
                 console.error('Error finding main article.');
                 document.getElementById('searchingArticles').style.display = 'none';
@@ -2218,7 +2217,7 @@ define(['jquery', 'zimArchiveLoader', 'uiUtil', 'settingsStore','abstractFilesys
                 //     uiUtil.systemAlert('<p>You are attempting to open a Zimit-style archive, which is currently unsupported in this app.</p>' +
                 //         '<p>There is experimental support for this kind of archive in the Kiwix JS PWA. Go to: ' +
                 //         '<a href="https://pwa.kiwix.org" target="_blank">https://pwa.kiwix.org</a>.</p>' +
-                //         '<p>Alternatively, you can use Kiwix Serve to serve this archive to your browser from localhost. ' + 
+                //         '<p>Alternatively, you can use Kiwix Serve to serve this archive to your browser from localhost. ' +
                 //         'Kiwix Serve is included with <a href="https://www.kiwix.org/en/download/" target="_blank">Kiwix Desktop</a>.</p>',
                 //         'Unsupported archive type!'
                 //     );