diff --git a/customize.dist/loading.js b/customize.dist/loading.js
index 6e4781aaf..8efca25fd 100644
--- a/customize.dist/loading.js
+++ b/customize.dist/loading.js
@@ -318,8 +318,8 @@ button:not(.btn).primary:hover{
 
         // Make sure progress doesn't go backward
         var c = types.indexOf(data.type);
-        if (c < current) { return console.error(data); }
-        if (c === current && progress > data.progress) { return console.error(data); }
+        if (c < current) { return console.debug(data); }
+        if (c === current && progress > data.progress) { return console.debug(data); }
         progress = data.progress;
 
         try {
diff --git a/www/admin/app-admin.less b/www/admin/app-admin.less
index fe9121090..a7efc2dad 100644
--- a/www/admin/app-admin.less
+++ b/www/admin/app-admin.less
@@ -31,6 +31,9 @@
             margin-top: 5px;
         }
     }
+    .cp-admin-setlimit-form + button {
+        margin-top: 5px !important;
+    }
     .cp-admin-getlimits {
         code {
             cursor: pointer;
diff --git a/www/common/application_config_internal.js b/www/common/application_config_internal.js
index 3185f2e29..1e848d289 100644
--- a/www/common/application_config_internal.js
+++ b/www/common/application_config_internal.js
@@ -169,7 +169,7 @@ define(function() {
     // make them have a very slow loading time. To avoid impacting the user experience
     // significantly, we're limiting the number of teams per user to 3 by default.
     // You can change this value here.
-    //config.maxTeamsSlots = 3;
+    //config.maxTeamsSlots = 5;
 
     // Each team is considered as a registered user by the server. Users and teams are indistinguishable
     // in the database so teams will offer the same storage limits as users by default.
@@ -177,7 +177,7 @@ define(function() {
     // We're limiting the number of teams each user is able to own to 1 in order to make sure
     // users don't use "fake" teams (1 member) just to increase their storage limit.
     // You can change the value here.
-    // config.maxOwnedTeams = 1;
+    // config.maxOwnedTeams = 5;
 
     return config;
 });
diff --git a/www/common/common-constants.js b/www/common/common-constants.js
index 17db2302c..fdae2b5de 100644
--- a/www/common/common-constants.js
+++ b/www/common/common-constants.js
@@ -12,8 +12,8 @@ define(['/customize/application_config.js'], function (AppConfig) {
         tokenKey: 'loginToken',
         displayPadCreationScreen: 'displayPadCreationScreen',
         deprecatedKey: 'deprecated',
-        MAX_TEAMS_SLOTS: AppConfig.maxTeamsSlots || 3,
-        MAX_TEAMS_OWNED: AppConfig.maxOwnedTeams || 1,
+        MAX_TEAMS_SLOTS: AppConfig.maxTeamsSlots || 5,
+        MAX_TEAMS_OWNED: AppConfig.maxOwnedTeams || 5,
         // Apps
         criticalApps: ['profile', 'settings', 'debug', 'admin', 'support', 'notifications']
     };
diff --git a/www/common/common-ui-elements.js b/www/common/common-ui-elements.js
index 81b202ee0..93b9e3648 100644
--- a/www/common/common-ui-elements.js
+++ b/www/common/common-ui-elements.js
@@ -2552,7 +2552,9 @@ define([
 
         var block = h('div#cp-loading-burn-after-reading', [
             info,
-            button
+            h('nav', {
+                style: 'text-align: right'
+            }, button),
         ]);
         UI.errorLoadingScreen(block);
     };
diff --git a/www/common/inner/share.js b/www/common/inner/share.js
index f3ca53f75..2be698d74 100644
--- a/www/common/inner/share.js
+++ b/www/common/inner/share.js
@@ -345,7 +345,7 @@ define([
 
             localStore.get('hide-alert-shareLinkWarning', function (val) {
                 if (val === '1') { return; }
-                $(shareLinkWarning).show();
+                $(shareLinkWarning).css('display', 'flex');
 
                 $(dismissButton).on('click', function () {
                     localStore.put('hide-alert-shareLinkWarning', '1');
diff --git a/www/common/outer/async-store.js b/www/common/outer/async-store.js
index afb799990..58fd28e00 100644
--- a/www/common/outer/async-store.js
+++ b/www/common/outer/async-store.js
@@ -331,6 +331,7 @@ define([
             if (!s.rpc) { return void cb({error: 'RPC_NOT_READY'}); }
 
             s.rpc.removeOwnedChannel(channel, function (err) {
+                if (!err) { Cache.clearChannel(channel); }
                 cb({error:err});
             });
         };
@@ -463,6 +464,7 @@ define([
             store.anon_rpc.send("GET_FILE_SIZE", channelId, function (e, response) {
                 if (e) { return void cb({error: e}); }
                 if (response && response.length && typeof(response[0]) === 'number') {
+                    if (response[0] === 0) { Cache.clearChannel(channelId); }
                     return void cb({size: response[0]});
                 } else {
                     cb({error: 'INVALID_RESPONSE'});
@@ -476,6 +478,7 @@ define([
             store.anon_rpc.send("IS_NEW_CHANNEL", channelId, function (e, response) {
                 if (e) { return void cb({error: e}); }
                 if (response && response.length && typeof(response[0]) === 'boolean') {
+                    if (response[0]) { Cache.clearChannel(channelId); }
                     return void cb({
                         isNew: response[0]
                     });
@@ -2277,6 +2280,9 @@ define([
             try {
                 store.onlyoffice.leavePad(chanId);
             } catch (e) { console.error(e); }
+            try {
+                Cache.leaveChannel(chanId);
+            } catch (e) { console.error(e); }
 
             if (!Store.channels[chanId]) { return; }
 
diff --git a/www/common/outer/cache-store.js b/www/common/outer/cache-store.js
index 067d2dda7..7a0a50209 100644
--- a/www/common/outer/cache-store.js
+++ b/www/common/outer/cache-store.js
@@ -91,23 +91,36 @@ define([
         array.splice(0, firstCpIdx);
     };
 
-    S.storeCache = function (id, validateKey, val, cb) {
-        cb = Util.once(Util.mkAsync(cb || function () {}));
+    var t = {};
+    S.storeCache = function (id, validateKey, val, onError) {
+        onError = Util.once(Util.mkAsync(onError || function () {}));
+
+        onReady.reg(function () {
+
+            // Make a throttle or use the existing one to avoid calling
+            // storeCache with the same array multiple times
+            t[id] = t[id] || Util.throttle(function (validateKey, val, onError) {
+                if (!allowed) { return void onError('NOCACHE'); }
+                if (!Array.isArray(val) || !validateKey) { return void onError('EINVAL'); }
+                checkCheckpoints(val);
+                cache.setItem(id, {
+                    k: validateKey,
+                    c: val,
+                    t: (+new Date()) // 't' represent the "lastAccess" of this cache (get or set)
+                }, function (err) {
+                    if (err) { onError(err); }
+                });
+
+            }, 50);
+            t[id](validateKey, val, onError);
 
-        onReady.reg(function (allowed) {
-            if (!allowed) { return void cb('NOCACHE'); }
-            if (!Array.isArray(val) || !validateKey) { return void cb('EINVAL'); }
-            checkCheckpoints(val);
-            cache.setItem(id, {
-                k: validateKey,
-                c: val,
-                t: (+new Date()) // 't' represent the "lastAccess" of this cache (get or set)
-            }, function (err) {
-                cb(err);
-            });
         });
     };
 
+    S.leaveChannel = function (id) {
+        delete t[id];
+    };
+
     S.clearChannel = function (id, cb) {
         cb = Util.once(Util.mkAsync(cb || function () {}));
 
diff --git a/www/common/sframe-common-file.js b/www/common/sframe-common-file.js
index 7b8601f13..6a0367b69 100644
--- a/www/common/sframe-common-file.js
+++ b/www/common/sframe-common-file.js
@@ -1,5 +1,6 @@
 define([
     'jquery',
+    '/api/config',
     '/file/file-crypto.js',
     '/common/make-backup.js',
     '/common/common-thumbnail.js',
@@ -12,7 +13,7 @@ define([
 
     '/bower_components/file-saver/FileSaver.min.js',
     '/bower_components/tweetnacl/nacl-fast.min.js',
-], function ($, FileCrypto, MakeBackup, Thumb, UI, UIElements, Util, Hash, h, Messages) {
+], function ($, ApiConfig, FileCrypto, MakeBackup, Thumb, UI, UIElements, Util, Hash, h, Messages) {
     var Nacl = window.nacl;
     var module = {};
 
@@ -166,8 +167,12 @@ define([
                 if (config.onError) { config.onError(e); }
 
                 if (e === 'TOO_LARGE') {
-                    $pv.text(Messages.upload_tooLargeBrief);
-                    return void UI.alert(Messages.upload_tooLarge);
+                    var privateData = common.getMetadataMgr().getPrivateData();
+                    var l = privateData.plan ? ApiConfig.premiumUploadSize : false;
+                    l = l || ApiConfig.maxUploadSize || '?';
+                    var maxSizeStr = Util.bytesToMegabytes(l);
+                    $pv.text(Messages.error);
+                    return void UI.alert(Messages._getKey('upload_tooLargeBrief', [maxSizeStr]));
                 }
                 if (e === 'NOT_ENOUGH_SPACE') {
                     $pv.text(Messages.upload_notEnoughSpaceBrief);
diff --git a/www/common/sframe-common-outer.js b/www/common/sframe-common-outer.js
index 44cbb3e3c..ca760efb8 100644
--- a/www/common/sframe-common-outer.js
+++ b/www/common/sframe-common-outer.js
@@ -97,6 +97,7 @@ define([
                 '/common/common-hash.js',
                 '/common/common-util.js',
                 '/common/common-realtime.js',
+                '/common/notify.js',
                 '/common/common-constants.js',
                 '/common/common-feedback.js',
                 '/common/outer/local-store.js',
@@ -105,7 +106,7 @@ define([
                 '/common/test.js',
                 '/common/userObject.js',
             ], waitFor(function (_CpNfOuter, _Cryptpad, _Crypto, _Cryptget, _SFrameChannel,
-            _SecureIframe, _Messaging, _Notifier, _Hash, _Util, _Realtime,
+            _SecureIframe, _Messaging, _Notifier, _Hash, _Util, _Realtime, _Notify,
             _Constants, _Feedback, _LocalStore, _Cache, _AppConfig, _Test, _UserObject) {
                 CpNfOuter = _CpNfOuter;
                 Cryptpad = _Cryptpad;
@@ -123,6 +124,7 @@ define([
                 Utils.LocalStore = _LocalStore;
                 Utils.Cache = _Cache;
                 Utils.UserObject = _UserObject;
+                Utils.Notify = _Notify;
                 Utils.currentPad = currentPad;
                 AppConfig = _AppConfig;
                 Test = _Test;
@@ -480,6 +482,7 @@ define([
                             // We've received a link without /p/ and it doesn't work without a password: abort
                             return void todo();
                         }
+
                         // Wrong password or deleted file?
                         askPassword(true, passwordCfg);
                     }));
@@ -534,6 +537,12 @@ define([
             var edPublic, curvePublic, notifications, isTemplate;
             var settings = {};
             var isSafe = ['debug', 'profile', 'drive', 'teams'].indexOf(currentPad.app) !== -1;
+
+            var isDeleted = isNewFile && currentPad.hash.length > 0;
+            if (isDeleted) {
+                Utils.Cache.clearChannel(secret.channel);
+            }
+
             var updateMeta = function () {
                 //console.log('EV_METADATA_UPDATE');
                 var metaObj;
@@ -557,6 +566,7 @@ define([
                         defaultTitle: defaultTitle,
                         type: cfg.type || parsed.type
                     };
+                    var notifs = Utils.Notify.isSupported() && Utils.Notify.hasPermission();
                     var additionalPriv = {
                         app: parsed.type,
                         loggedIn: Utils.LocalStore.isLoggedIn(),
@@ -571,13 +581,13 @@ define([
                         isPresent: parsed.hashData && parsed.hashData.present,
                         isEmbed: parsed.hashData && parsed.hashData.embed,
                         isHistoryVersion: parsed.hashData && parsed.hashData.versionHash,
-                        notifications: Notification && Notification.permission === "granted",
+                        notifications: notifs,
                         accounts: {
                             donateURL: Cryptpad.donateURL,
                             upgradeURL: Cryptpad.upgradeURL
                         },
                         isNewFile: isNewFile,
-                        isDeleted: isNewFile && currentPad.hash.length > 0,
+                        isDeleted: isDeleted,
                         password: password,
                         channel: secret.channel,
                         enableSF: localStorage.CryptPad_SF === "1", // TODO to remove when enabled by default
@@ -1598,6 +1608,7 @@ define([
             });
 
             sframeChan.on('Q_ASK_NOTIFICATION', function (data, cb) {
+                if (!Utils.Notify.isSupported()) { return void cb(false); }
                 Notification.requestPermission(function (s) {
                     cb(s === "granted");
                 });
diff --git a/www/settings/inner.js b/www/settings/inner.js
index b4668efff..b4290becb 100644
--- a/www/settings/inner.js
+++ b/www/settings/inner.js
@@ -593,8 +593,8 @@ define([
 
         var todo = function () {
             var val = parseInt($input.val());
+            if (typeof(val) !== 'number' || isNaN(val)) { return UI.warn(Messages.error); }
             if (val === oldVal) { return; }
-            if (typeof(val) !== 'number') { return UI.warn(Messages.error); }
             spinner.spin();
             common.setAttribute(['general', 'mediatag-size'], val, function (err) {
                 if (err) {
@@ -602,6 +602,7 @@ define([
                     console.error(err);
                     return UI.warn(Messages.error);
                 }
+                oldVal = val;
                 spinner.done();
                 UI.log(Messages.saved);
             });
@@ -616,7 +617,7 @@ define([
 
         common.getAttribute(['general', 'mediatag-size'], function(e, val) {
             if (e) { return void console.error(e); }
-            if (typeof(val) !== 'number') {
+            if (typeof(val) !== 'number' || isNaN(val)) {
                 oldVal = 5;
                 $input.val(5);
             } else {
diff --git a/www/teams/inner.js b/www/teams/inner.js
index 7af3d7afc..2c37eabf0 100644
--- a/www/teams/inner.js
+++ b/www/teams/inner.js
@@ -476,7 +476,7 @@ define([
         var getWarningBox = function () {
             return h('div.alert.alert-warning', {
                 role:'alert'
-            }, isOwner ? Messages.team_maxOwner : Messages._getKey('team_maxTeams', [MAX_TEAMS_SLOTS]));
+            }, Messages._getKey('team_maxTeams', [MAX_TEAMS_SLOTS]));
         };
 
         if (Object.keys(privateData.teams || {}).length >= Constants.MAX_TEAMS_SLOTS || isOwner) {
diff --git a/www/whiteboard/inner.js b/www/whiteboard/inner.js
index 30c43aef1..e0492309f 100644
--- a/www/whiteboard/inner.js
+++ b/www/whiteboard/inner.js
@@ -332,7 +332,7 @@ define([
             });
         };
         var MAX_IMAGE_SIZE = 1 * 1024 * 1024; // 1 MB
-        var maxSizeStr = Messages._getKey('formattedMB', [Util.bytesToMegabytes(MAX_IMAGE_SIZE)]);
+        var maxSizeStr = Util.bytesToMegabytes(MAX_IMAGE_SIZE);
         var addImageToCanvas = function (img) {
             if (img.src && img.src.length > MAX_IMAGE_SIZE) {
                 UI.warn(Messages._getKey('upload_tooLargeBrief', [maxSizeStr]));