diff --git a/.jshintignore b/.jshintignore
index 2ac398427..d3c96b2c0 100644
--- a/.jshintignore
+++ b/.jshintignore
@@ -8,7 +8,6 @@ www/common/onlyoffice/v2*
 www/common/onlyoffice/v4
 www/common/onlyoffice/v5
 
-server.js
 www/scratch
 www/accounts
 www/lib
diff --git a/lib/env.js b/lib/env.js
index bb32f88c0..8824c347f 100644
--- a/lib/env.js
+++ b/lib/env.js
@@ -11,6 +11,7 @@ const Core = require("./commands/core");
 const Quota = require("./commands/quota");
 const Util = require("./common-util");
 const Package = require("../package.json");
+const Path = require("path");
 
 var canonicalizeOrigin = function (s) {
     if (typeof(s) === 'undefined') { return; }
@@ -296,7 +297,7 @@ module.exports.create = function (config) {
     var paths = Env.paths;
 
     var keyOrDefaultString = function (key, def) {
-        return typeof(config[key]) === 'string'? config[key]: def;
+        return Path.resolve(typeof(config[key]) === 'string'? config[key]: def);
     };
 
     Env.incrementBytesWritten = function (n) {
diff --git a/lib/metadata.js b/lib/metadata.js
index d320a5c9b..d906ea28f 100644
--- a/lib/metadata.js
+++ b/lib/metadata.js
@@ -386,6 +386,7 @@ Meta.createLineHandler = function (ref, errorHandler) {
     ref.meta = {};
     ref.index = 0;
     ref.logged = {};
+    var overwritten = false;
 
     return function (err, line) {
         if (err) {
@@ -430,6 +431,8 @@ Meta.createLineHandler = function (ref, errorHandler) {
         // Thus, accept both the first and second lines you process as valid initial state
         // preferring the second if it exists
         if (index < 2 && line && typeof(line) === 'object') {
+            if (overwritten) { return; } // hack to avoid overwriting metadata a second time
+            overwritten = true;
             // special case!
             ref.meta = line;
             return;
diff --git a/lib/storage/file.js b/lib/storage/file.js
index 48d912cdd..c5d3efb7e 100644
--- a/lib/storage/file.js
+++ b/lib/storage/file.js
@@ -1107,8 +1107,8 @@ module.exports.create = function (conf, _cb) {
     var cb = Util.once(Util.mkAsync(_cb));
 
     var env = {
-        root: conf.filePath || './datastore',
-        archiveRoot: conf.archivePath || './data/archive',
+        root: Path.resolve(conf.filePath || './datastore'),
+        archiveRoot: Path.resolve(conf.archivePath || './data/archive'),
         // supply a volumeId if you want a store to archive channels to and from
         // to its own subpath within the archive directory
         volumeId: conf.volumeId || 'datastore',
diff --git a/server.js b/server.js
index cbed35cf7..9c4215392 100644
--- a/server.js
+++ b/server.js
@@ -1,5 +1,5 @@
 /*
-    globals require console
+    globals process
 */
 var Express = require('express');
 var Http = require('http');
@@ -8,7 +8,6 @@ var Path = require("path");
 var nThen = require("nthen");
 var Util = require("./lib/common-util");
 var Default = require("./lib/defaults");
-var Keys = require("./lib/keys");
 
 var config = require("./lib/load-config");
 var Env = require("./lib/env").create(config);
@@ -116,16 +115,17 @@ app.head(/^\/common\/feedback\.html/, function (req, res, next) {
 });
 }());
 
+const serveStatic = Express.static(Env.paths.blob, {
+    setHeaders: function (res) {
+        res.set('Access-Control-Allow-Origin', Env.enableEmbedding? '*': Env.permittedEmbedders);
+        res.set('Access-Control-Allow-Headers', 'Content-Length');
+        res.set('Access-Control-Expose-Headers', 'Content-Length');
+    }
+});
+
 app.use('/blob', function (req, res, next) {
     if (req.method === 'HEAD') {
-        Express.static(Path.join(__dirname, Env.paths.blob), {
-            setHeaders: function (res, path, stat) {
-                res.set('Access-Control-Allow-Origin', Env.enableEmbedding? '*': Env.permittedEmbedders);
-                res.set('Access-Control-Allow-Headers', 'Content-Length');
-                res.set('Access-Control-Expose-Headers', 'Content-Length');
-            }
-        })(req, res, next);
-        return;
+        return void serveStatic(req, res, next);
     }
     next();
 });
@@ -150,32 +150,33 @@ app.use(function (req, res, next) {
 
 // serve custom app content from the customize directory
 // useful for testing pages customized with opengraph data
-app.use(Express.static(__dirname + '/customize/www'));
-app.use(Express.static(__dirname + '/www'));
+app.use(Express.static(Path.resolve('customize/www')));
+app.use(Express.static(Path.resolve('www')));
 
 // FIXME I think this is a regression caused by a recent PR
 // correct this hack without breaking the contributor's intended behaviour.
 
 var mainPages = config.mainPages || Default.mainPages();
 var mainPagePattern = new RegExp('^\/(' + mainPages.join('|') + ').html$');
-app.get(mainPagePattern, Express.static(__dirname + '/customize'));
-app.get(mainPagePattern, Express.static(__dirname + '/customize.dist'));
+app.get(mainPagePattern, Express.static(Path.resolve('customize')));
+app.get(mainPagePattern, Express.static(Path.resolve('customize.dist')));
 
-app.use("/blob", Express.static(Path.join(__dirname, Env.paths.blob), {
+app.use("/blob", Express.static(Env.paths.blob, {
     maxAge: Env.DEV_MODE? "0d": "365d"
 }));
-app.use("/datastore", Express.static(Path.join(__dirname, Env.paths.data), {
+app.use("/datastore", Express.static(Env.paths.data, {
     maxAge: "0d"
 }));
-app.use("/block", Express.static(Path.join(__dirname, Env.paths.block), {
+
+app.use("/block", Express.static(Env.paths.block, {
     maxAge: "0d",
 }));
 
-app.use("/customize", Express.static(__dirname + '/customize'));
-app.use("/customize", Express.static(__dirname + '/customize.dist'));
-app.use("/customize.dist", Express.static(__dirname + '/customize.dist'));
-app.use(/^\/[^\/]*$/, Express.static('customize'));
-app.use(/^\/[^\/]*$/, Express.static('customize.dist'));
+app.use("/customize", Express.static(Path.resolve('customize')));
+app.use("/customize", Express.static(Path.resolve('customize.dist')));
+app.use("/customize.dist", Express.static(Path.resolve('customize.dist')));
+app.use(/^\/[^\/]*$/, Express.static(Path.resolve('customize')));
+app.use(/^\/[^\/]*$/, Express.static(Path.resolve('customize.dist')));
 
 // if dev mode: never cache
 var cacheString = function () {
@@ -216,7 +217,7 @@ var makeRouteCache = function (template, cacheName) {
     };
 };
 
-var serveConfig = makeRouteCache(function (host) {
+var serveConfig = makeRouteCache(function () {
     return [
         'define(function(){',
         'return ' + JSON.stringify({
@@ -244,10 +245,10 @@ var serveConfig = makeRouteCache(function (host) {
             accounts_api: Env.accounts_api,
         }, null, '\t'),
         '});'
-    ].join(';\n')
+    ].join(';\n');
 }, 'configCache');
 
-var serveBroadcast = makeRouteCache(function (host) {
+var serveBroadcast = makeRouteCache(function () {
     var maintenance = Env.maintenance;
     if (maintenance && maintenance.end && maintenance.end < (+new Date())) {
         maintenance = undefined;
@@ -260,21 +261,21 @@ var serveBroadcast = makeRouteCache(function (host) {
             maintenance: maintenance
         }, null, '\t'),
         '});'
-    ].join(';\n')
+    ].join(';\n');
 }, 'broadcastCache');
 
 app.get('/api/config', serveConfig);
 app.get('/api/broadcast', serveBroadcast);
 
-var define = function (obj) {
+var defineBlock = function (obj) {
     return `define(function (){
     return ${JSON.stringify(obj, null, '\t')};
-});`
+});`;
 };
 
 app.get('/api/instance', function (req, res) { // XXX use caching?
     res.setHeader('Content-Type', 'text/javascript');
-    res.send(define({
+    res.send(defineBlock({
         name: Env.instanceName,
         description: Env.instanceDescription,
         location: Env.instanceJurisdiction,
@@ -282,10 +283,10 @@ app.get('/api/instance', function (req, res) { // XXX use caching?
     }));
 });
 
-var four04_path = Path.resolve(__dirname + '/customize.dist/404.html');
-var fivehundred_path = Path.resolve(__dirname + '/customize.dist/500.html');
-var custom_four04_path = Path.resolve(__dirname + '/customize/404.html');
-var custom_fivehundred_path = Path.resolve(__dirname + '/customize/500.html');
+var four04_path = Path.resolve('customize.dist/404.html');
+var fivehundred_path = Path.resolve('customize.dist/500.html');
+var custom_four04_path = Path.resolve('customize/404.html');
+var custom_fivehundred_path = Path.resolve('/customize/500.html');
 
 var send404 = function (res, path) {
     if (!path && path !== four04_path) { path = four04_path; }
@@ -321,7 +322,7 @@ app.get('/api/updatequota', function (req, res) {
     });
 });
 
-app.get('/api/profiling', function (req, res, next) {
+app.get('/api/profiling', function (req, res) {
     if (!Env.enableProfiling) { return void send404(res); }
     res.setHeader('Content-Type', 'text/javascript');
     res.send(JSON.stringify({
@@ -329,13 +330,13 @@ app.get('/api/profiling', function (req, res, next) {
     }));
 });
 
-app.use(function (req, res, next) {
+app.use(function (req, res) {
     res.status(404);
     send404(res, custom_four04_path);
 });
 
 // default message for thrown errors in ExpressJS routes
-app.use(function (err, req, res, next) {
+app.use(function (err, req, res) {
     Env.Log.error('EXPRESSJS_ROUTING', {
         error: err.stack || err,
     });
@@ -346,7 +347,7 @@ app.use(function (err, req, res, next) {
 var httpServer = Env.httpServer = Http.createServer(app);
 
 nThen(function (w) {
-    Fs.exists(__dirname + "/customize", w(function (e) {
+    Fs.exists(Path.resolve("customize"), w(function (e) {
         if (e) { return; }
         console.log("CryptPad is customizable, see customize.dist/readme.md for details");
     }));
@@ -377,7 +378,7 @@ nThen(function (w) {
         Http.createServer(app).listen(Env.httpSafePort, Env.httpAddress, w());
     }
 }).nThen(function () {
-    var wsConfig = { server: httpServer };
+    //var wsConfig = { server: httpServer };
 
     // Initialize logging then start the API server
     require("./lib/log").create(config, function (_log) {
diff --git a/www/checkup/main.js b/www/checkup/main.js
index b69c5441e..05049562b 100644
--- a/www/checkup/main.js
+++ b/www/checkup/main.js
@@ -1566,7 +1566,7 @@ define([
             console.error(err);
         }
 
-        return h(`div.errorcp-test-status.${obj.type}`, [
+        return h(`div.error.cp-test-status.${obj.type}`, [
             h('h5', obj.message),
             h('div.table-container',
                 h('table', [
diff --git a/www/common/common-util.js b/www/common/common-util.js
index efcb46227..05da8bf93 100644
--- a/www/common/common-util.js
+++ b/www/common/common-util.js
@@ -36,6 +36,7 @@
     };
 
     Util.clone = function (o) {
+        if (o === undefined || o === null) { return o; }
         return JSON.parse(JSON.stringify(o));
     };
 
diff --git a/www/common/translations/messages.fr.json b/www/common/translations/messages.fr.json
index 495fc311f..8c2449566 100644
--- a/www/common/translations/messages.fr.json
+++ b/www/common/translations/messages.fr.json
@@ -1500,5 +1500,7 @@
     "og_features": "{0} Fonctionnalités",
     "og_encryptedAppType": "Chiffré {0}",
     "admin_conflictExplanation": "Il existe deux versions de ce document. La restauration de la version archivée va écraser la version courante. L'archivage de la version courante va écraser le document archivé. Aucune de ces actions ne peut être annulée.",
-    "admin_documentConflict": "Archiver/restaurer"
+    "admin_documentConflict": "Archiver/restaurer",
+    "fm_rmFilter": "Désactiver le filtre",
+    "fm_filterBy": "Filtrer"
 }
diff --git a/www/common/translations/messages.json b/www/common/translations/messages.json
index d85dfdd6b..43b75d3a6 100644
--- a/www/common/translations/messages.json
+++ b/www/common/translations/messages.json
@@ -1500,5 +1500,7 @@
     "ui_jsRequired": "JavaScript must be enabled to perform encryption in your browser",
     "og_encryptedAppType": "Encrypted {0}",
     "admin_documentConflict": "Archive/restore",
-    "admin_conflictExplanation": "Two versions of this document exist. Restoring the archived version will overwrite the live version. Archiving the live version will overwrite the archived version. Neither action can be undone."
+    "admin_conflictExplanation": "Two versions of this document exist. Restoring the archived version will overwrite the live version. Archiving the live version will overwrite the archived version. Neither action can be undone.",
+    "fm_filterBy": "Filter",
+    "fm_rmFilter": "Remove filter"
 }