diff --git a/bower.json b/bower.json
index e2763ccfd..809fd5323 100644
--- a/bower.json
+++ b/bower.json
@@ -31,7 +31,7 @@
     "hyperjson": "~1.4.0",
     "chainpad-crypto": "^0.1.8",
     "chainpad-listmap": "^0.5.0",
-    "chainpad": "^5.0.0",
+    "chainpad": "^5.1.0",
     "chainpad-netflux": "^0.7.0",
     "file-saver": "1.3.1",
     "alertifyjs": "1.0.11",
diff --git a/customize.dist/login.js b/customize.dist/login.js
index 1f8cebab5..dd40ad831 100644
--- a/customize.dist/login.js
+++ b/customize.dist/login.js
@@ -154,6 +154,7 @@ define([
                     proxy.login_name = uname;
                     proxy[Constants.displayNameKey] = uname;
                     sessionStorage.createReadme = 1;
+                    if (!shouldImport) { proxy.version = 5; }
                     Feedback.send('REGISTRATION', true);
                 } else {
                     Feedback.send('LOGIN', true);
diff --git a/customize.dist/src/less2/include/infopages.less b/customize.dist/src/less2/include/infopages.less
index b07b90aa8..4282b3499 100644
--- a/customize.dist/src/less2/include/infopages.less
+++ b/customize.dist/src/less2/include/infopages.less
@@ -161,6 +161,7 @@
         background-size: contain;
         height: 50px;
         width: 250px;
+        margin-right: 0;
     }
     a {
         border: 2px solid transparent;
@@ -169,7 +170,8 @@
     .nav-link {
         padding: 0.5em 0.7em;
         &:hover {
-            transform: scale(1.05);
+            font-size: 1.05em;
+            //transform: scale(1.05);
         };
     }
     .cp-register-btn {
@@ -184,9 +186,18 @@
         color: #4591C4;
     }
 }
-@media (max-width: 991px) {
+@media (max-width: 1000px) {
     #menuCollapse {
         text-align: right;
+/*        @media (min-width: 576px) {
+            top: 100%;
+            background: rgba(255,255,255,0.8);
+            position: absolute;
+            right: 0px;
+            padding: 0 20px;
+            z-index: 1;
+        }
+*/
     }
     .navbar-nav a {
         text-align: right !important;
@@ -194,7 +205,7 @@
     .cp-register-btn {
         margin-right: 13px;
         text-align: center;
-     }
+    }
 }
 
 //footer general styles
diff --git a/customize.dist/src/less2/pages/page-register.less b/customize.dist/src/less2/pages/page-register.less
index 6336c6aa3..e8f49a850 100644
--- a/customize.dist/src/less2/pages/page-register.less
+++ b/customize.dist/src/less2/pages/page-register.less
@@ -23,11 +23,7 @@
             }
             margin-top: 16px;
             font-size: 1.25em;
-            min-width: 30%; // conflict?
-            width: 30%;
-            @media (max-width: 500px) {
-                width: 45%;
-            }
+            min-width: 30%;
         }
     }
     padding-bottom: 3em;
diff --git a/customize.dist/translations/messages.fr.js b/customize.dist/translations/messages.fr.js
index 05845a83c..86f960bcb 100644
--- a/customize.dist/translations/messages.fr.js
+++ b/customize.dist/translations/messages.fr.js
@@ -37,6 +37,7 @@ define(function () {
     out.chainpadError = 'Une erreur critique est survenue lors de la mise à jour du contenu. Le pad est désormais en mode lecture seule afin de s\'assurer que vous ne perdiez pas davantage de données.<br>' +
                         'Appuyez sur <em>Échap</em> pour voir le pad ou rechargez la page pour pouvoir le modifier à nouveau.';
     out.errorCopy = ' Vous pouvez toujours copier son contenu ailleurs en appuyant sur <em>Échap</em>.<br> Dés que vous aurez quitté la page, il sera impossible de le récupérer.';
+    out.errorRedirectToHome = 'Appuyez sur <em>Échap</em> pour retourner vers votre CryptDrive.';
 
     out.loading = "Chargement...";
     out.error = "Erreur";
diff --git a/customize.dist/translations/messages.js b/customize.dist/translations/messages.js
index ce2868783..ddaa1158f 100644
--- a/customize.dist/translations/messages.js
+++ b/customize.dist/translations/messages.js
@@ -38,6 +38,7 @@ define(function () {
     out.chainpadError = 'A critical error occurred when updating your content. This page is in read-only mode to make sure you won\'t lose your work.<br>' +
                         'Hit <em>Esc</em> to continue to view this pad, or reload to try editing again.';
     out.errorCopy = ' You can still copy the content to another location by pressing <em>Esc</em>.<br>Once you leave this page, it will disappear forever!';
+    out.errorRedirectToHome = 'Press <em>Esc</em> to be redirected to your CryptDrive.';
 
     out.loading = "Loading...";
     out.error = "Error";
diff --git a/docs/example.nginx.conf b/docs/example.nginx.conf
index d56920bf5..44b12ade8 100644
--- a/docs/example.nginx.conf
+++ b/docs/example.nginx.conf
@@ -75,6 +75,12 @@ server {
         }
         
     location ^~ /blob/ {
+        add_header Cache-Control max-age=31536000;
+        try_files $uri =404;
+    }
+
+    location ^~ /datastore/ {
+        add_header Cache-Control max-age=0;
         try_files $uri =404;
     }
 
diff --git a/server.js b/server.js
index 1ff289f64..aac8d7513 100644
--- a/server.js
+++ b/server.js
@@ -123,6 +123,9 @@ app.get(mainPagePattern, Express.static(__dirname + '/customize.dist'));
 app.use("/blob", Express.static(Path.join(__dirname, (config.blobPath || './blob')), {
     maxAge: DEV_MODE? "0d": "365d"
 }));
+app.use("/datastore", Express.static(Path.join(__dirname, (config.filePath || './datastore')), {
+    maxAge: "0d"
+}));
 
 app.use("/customize", Express.static(__dirname + '/customize'));
 app.use("/customize", Express.static(__dirname + '/customize.dist'));
diff --git a/www/common/sframe-common-outer.js b/www/common/sframe-common-outer.js
index fab9dfcfd..11d20ce56 100644
--- a/www/common/sframe-common-outer.js
+++ b/www/common/sframe-common-outer.js
@@ -650,6 +650,12 @@ define([
                         Cryptpad.getMetadata(waitFor(function (err, m) {
                             cpNfCfg.owners = [m.priv.edPublic];
                         }));
+                    } else if (isNewFile && !cfg.useCreationScreen && window.location.hash) {
+                        console.log("new file with hash in the address bar in an app without pcs and which requires owners");
+                        sframeChan.onReady(function () {
+                            sframeChan.query("EV_LOADING_ERROR", "DELETED");
+                        });
+                        waitFor.abort();
                     }
                 }).nThen(function () {
                     Object.keys(rtConfig).forEach(function (k) {
diff --git a/www/common/sframe-common.js b/www/common/sframe-common.js
index c909c01f2..ab3c2389d 100644
--- a/www/common/sframe-common.js
+++ b/www/common/sframe-common.js
@@ -435,6 +435,15 @@ define([
                 Feedback.init(feedback);
             } catch (e) { Feedback.init(false); }
 
+            ctx.sframeChan.on('EV_LOADING_ERROR', function (err) {
+                if (err === 'DELETED') {
+                    var msg = Messages.deletedError + '<br>' + Messages.errorRedirectToHome;
+                    UI.errorLoadingScreen(msg, false, function () {
+                        funcs.gotoURL('/drive/');
+                    });
+                }
+            });
+
             ctx.sframeChan.on('EV_LOGOUT', function () {
                 $(window).on('keyup', function (e) {
                     if (e.keyCode === 27) {
diff --git a/www/common/sframe-protocol.js b/www/common/sframe-protocol.js
index 4c3046ad9..8142694ce 100644
--- a/www/common/sframe-protocol.js
+++ b/www/common/sframe-protocol.js
@@ -227,4 +227,7 @@ define({
     // This is for sending data out of the iframe when we are in testing mode
     // The exact protocol is defined in common/test.js
     'EV_TESTDATA': true,
+
+    // Critical error outside the iframe during loading screen
+    'EV_LOADING_ERROR': true,
 });
diff --git a/www/drive/inner.js b/www/drive/inner.js
index ae0328491..df9708d97 100644
--- a/www/drive/inner.js
+++ b/www/drive/inner.js
@@ -2096,7 +2096,7 @@ define([
                     var parsed = Hash.parsePadUrl(href);
                     var $table = $('<table>');
                     var $icon = $('<td>', {'rowspan': '3', 'class': 'cp-app-drive-search-icon'})
-                        .append(getFileIcon(href));
+                        .append(getFileIcon(r.id));
                     var $title = $('<td>', {
                         'class': 'cp-app-drive-search-col1 cp-app-drive-search-title'
                     }).text(r.data.title)
diff --git a/www/profile/main.js b/www/profile/main.js
index 2449ea96b..c4b3847a4 100644
--- a/www/profile/main.js
+++ b/www/profile/main.js
@@ -53,7 +53,11 @@ define([
                     return void cb(null, Hash.getSecrets('profile', editHash));
                 }
                 // 3rd case: profile creation (create a new random hash, store it later if needed)
-                if (!Utils.LocalStore.isLoggedIn()) { return void cb(); }
+                if (!Utils.LocalStore.isLoggedIn()) {
+                    // Unregistered users can't create a profile
+                    window.location.href = '/drive';
+                    return void cb();
+                }
                 var hash = Hash.createRandomHash();
                 var secret = Hash.getSecrets('profile', hash);
                 Cryptpad.pinPads([secret.channel], function (e) {