diff --git a/package.json b/package.json
index d049d8e..6d70680 100644
--- a/package.json
+++ b/package.json
@@ -46,6 +46,7 @@
     "connect-flash": "^0.1.1",
     "connect-mongo": "^4.6.0",
     "cookie-parser": "^1.4.6",
+    "debug": "^4.3.3",
     "ejs": "^3.1.6",
     "express": "^4.17.2",
     "express-session": "^1.17.2",
diff --git a/src/app.js b/src/app.js
index 0ca0bf5..50c4eeb 100644
--- a/src/app.js
+++ b/src/app.js
@@ -50,10 +50,8 @@ if (["production"].indexOf(env) !== -1) {
     /* eslint-disable func-names */
     app.use((req, res, next) => {
         if (req.secure) {
-            // request was via https, so do no special handling
             next();
         } else {
-            // request was via http, so redirect to https
             res.redirect(`https://${req.headers.host}${req.url}`);
         }
     });
diff --git a/src/bin/www.js b/src/bin/www.js
index 1723d8a..3fc7b77 100644
--- a/src/bin/www.js
+++ b/src/bin/www.js
@@ -4,54 +4,49 @@
  * Module dependencies.
  */
 
-import app from '../app';
-import debugLib from 'debug';
-import http from 'http';
-import {port} from '../config';
+import debugLib from "debug";
+import http from "http";
+import app from "../app";
+import { port } from "../config";
 
-const debug = debugLib('nodecdtheque:server');
+const debug = debugLib("nodecdtheque:server");
 const server = http.createServer(app);
 
-server.listen(port);
-server.on('error', onError);
-server.on('listening', onListening);
-
 /**
  * Event listener for HTTP server "error" event.
  * @param {*} error
  */
 function onError(error) {
-  if (error.syscall !== 'listen') {
-    throw error;
-  }
+    if (error.syscall !== "listen") {
+        throw error;
+    }
 
-  const bind = typeof port === 'string' ?
-    'Pipe ' + port :
-    'Port ' + port;
+    const bind = typeof port === "string" ? `Pipe ${port}` : `Port ${port}`;
 
-  // handle specific listen errors with friendly messages
-  switch (error.code) {
-    case 'EACCES':
-      console.error(bind + ' requires elevated privileges');
-      process.exit(1);
-      break;
-    case 'EADDRINUSE':
-      console.error(bind + ' is already in use');
-      process.exit(1);
-      break;
-    default:
-      throw error;
-  }
+    switch (error.code) {
+        case "EACCES":
+            console.error(`${bind} requires elevated privileges`);
+            process.exit(1);
+            break;
+        case "EADDRINUSE":
+            console.error(`${bind} is already in use`);
+            process.exit(1);
+            break;
+        default:
+            throw error;
+    }
 }
 
 /**
  * Event listener for HTTP server "listening" event.
  */
 function onListening() {
-  const addr = server.address();
-  const bind = typeof addr === 'string' ?
-    'pipe ' + addr :
-    'port ' + addr.port;
-  debug('Listening on ' + bind);
+    const addr = server.address();
+    const bind =
+        typeof addr === "string" ? `pipe ${addr}` : `port ${addr.port}`;
+    debug(`Listening on ${bind}`);
 }
 
+server.listen(port);
+server.on("error", onError);
+server.on("listening", onListening);
diff --git a/src/views/error.ejs b/src/views/error.ejs
index d2057dd..5c36b8a 100644
--- a/src/views/error.ejs
+++ b/src/views/error.ejs
@@ -1,23 +1,22 @@
 <!DOCTYPE html>
 <html lang="fr">
-<%- include('partials/head', {page: page, user: user}); %>
-
-<body class="error">
-  <%- include('partials/header'); %>
-  <main class="mt-4">
-    <div class="container">
-      <section class="px-md-5 mx-md-5 dark-grey-text mb-4">
-        <h1><%= page.title %></h1>
-        <% if ( errorCode && errorCode === 404 ) { %>
-          <img src="/img/404.svg" alt="Erreur 404" style="max-height: 400px;" />
-        <% } %>
-        <p class="lead">
-          <%= page.error %>
-        </p>
-      </section>
-    </div>
-  </main>
-  <%- include('partials/footer', {page: page, user: user, blog: null}); %>
-</body>
+    <%- include('partials/head', {page: page, user: user}); %>
 
+    <body class="error">
+        <%- include('partials/header'); %>
+        <main class="mt-4">
+            <div class="container">
+                <section class="px-md-5 mx-md-5 dark-grey-text mb-4">
+                    <h1><%= page.title %></h1>
+                    <% if ( errorCode && errorCode === 404 ) { %>
+                        <img src="/img/404.svg" alt="Erreur 404" style="max-height: 400px;" />
+                    <% } %>
+                    <p class="lead">
+                        <%= page.error %>
+                    </p>
+                </section>
+            </div>
+        </main>
+        <%- include('partials/footer', {page: page, user: user, blog: null}); %>
+    </body>
 </html>
\ No newline at end of file
diff --git a/src/views/index.ejs b/src/views/index.ejs
index 4c21a1f..063569a 100644
--- a/src/views/index.ejs
+++ b/src/views/index.ejs
@@ -1,26 +1,27 @@
 <!doctype html>
 <html lang="fr">
-  <%- include('partials/head'); %>
-  <body>
-    <%- include('partials/header'); %>
+    <%- include('partials/head'); %>
+    <body>
+        <%- include('partials/header'); %>
 
-    <% if ( page.failureFlash ) {%>
-      <div class="alert alert-danger" role="alert">
-        <%= page.failureFlash %>
-      </div>
-    <% } %>
-    <%
-      if (error && error.length > 0) {
-        for( let i = 0 ; i < error.length ; i += 1 ) {
-    %>
-          <div class="alert alert-danger" role="alert">
-            <%= error %>
-          </div>
-    <%
-        }
-      }
-    %>
-    <%- include(viewname) %>
-    <%- include('partials/footer'); %>
-  </body>
+        <% if ( page.failureFlash ) {%>
+            <div class="alert alert-danger" role="alert">
+                <%= page.failureFlash %>
+            </div>
+        <% } %>
+
+        <%
+            if (error && error.length > 0) {
+                for( let i = 0 ; i < error.length ; i += 1 ) {
+        %>
+                    <div class="alert alert-danger" role="alert">
+                        <%= error %>
+                    </div>
+        <%
+                }
+            }
+        %>
+        <%- include(viewname) %>
+        <%- include('partials/footer'); %>
+    </body>
 </html>
diff --git a/src/views/pages/connexion.ejs b/src/views/pages/connexion.ejs
index 5c3c444..162a205 100644
--- a/src/views/pages/connexion.ejs
+++ b/src/views/pages/connexion.ejs
@@ -1,26 +1,24 @@
 <div class="container">
-  <div class="d-flex justify-content-center">
-    <div class="p-2">
-      <form class="text-center border border-light p-5" method="POST">
-        <img class="mb-4" src="/img/logo.png" alt="DarKou">
-        <p class="h4 mb-4">Connexion</p>
+    <div class="d-flex justify-content-center">
+        <div class="p-2">
+            <form class="text-center border border-light p-5" method="POST">
+                <img class="mb-4" src="/img/logo.png" alt="DarKou">
+                <p class="h4 mb-4">Connexion</p>
 
-        <div class="md-form">
-          <input type="email" id="email" name="email" class="form-control" required>
-          <label for="email">Adresse e-mail</label>
+                <div class="md-form">
+                    <input type="email" id="email" name="email" class="form-control" required>
+                    <label for="email">Adresse e-mail</label>
+                </div>
+
+                <div class="md-form">
+                    <input type="password" id="password" name="password" class="form-control" required>
+                    <label for="password">Mot de passe</label>
+                </div>
+
+                <button class="btn btn-primary btn-block my-4" type="submit">Connexion</button>
+
+                <p>Pas encore inscrit ? <a href="/inscription">Inscrivez-vous</a></p>
+            </form>
         </div>
-
-        <div class="md-form">
-          <input type="password" id="password" name="password" class="form-control" required>
-          <label for="password">Mot de passe</label>
-        </div>
-
-        <button class="btn btn-primary btn-block my-4" type="submit">Connexion</button>
-
-        <p>Pas encore inscrit ?
-            <a href="/inscription">Inscrivez-vous</a>
-        </p>
-      </form>
     </div>
-  </div>
 </div>
\ No newline at end of file
diff --git a/src/views/pages/inscription.ejs b/src/views/pages/inscription.ejs
index 9ca3a04..4b7e2b6 100644
--- a/src/views/pages/inscription.ejs
+++ b/src/views/pages/inscription.ejs
@@ -1,31 +1,29 @@
 <div class="container">
-  <div class="d-flex justify-content-center">
-    <div class="p-2">
-      <form class="text-center border border-light p-5" method="POST">
-        <img class="mb-4" src="/img/logo.png" alt="DarKou">
-        <p class="h4 mb-4">Inscription</p>
+    <div class="d-flex justify-content-center">
+        <div class="p-2">
+            <form class="text-center border border-light p-5" method="POST">
+                <img class="mb-4" src="/img/logo.png" alt="DarKou">
+                <p class="h4 mb-4">Inscription</p>
 
-        <div class="md-form">
-          <input type="text" id="username" name="username" class="form-control" required>
-          <label for="username">Nom d'utilisateur</label>
+                <div class="md-form">
+                    <input type="text" id="username" name="username" class="form-control" required>
+                    <label for="username">Nom d'utilisateur</label>
+                </div>
+
+                <div class="md-form">
+                    <input type="email" id="email" name="email" class="form-control" required>
+                    <label for="email">Adresse e-mail</label>
+                </div>
+
+                <div class="md-form">
+                    <input type="password" id="password" name="password" class="form-control" required>
+                    <label for="password">Mot de passe</label>
+                </div>
+
+                <button class="btn btn-primary btn-block my-4" type="submit">Inscription</button>
+
+                <p>Déjà inscrit ? <a href="/connexion">Connectez-vous</a></p>
+            </form>
         </div>
-
-        <div class="md-form">
-          <input type="email" id="email" name="email" class="form-control" required>
-          <label for="email">Adresse e-mail</label>
-        </div>
-
-        <div class="md-form">
-          <input type="password" id="password" name="password" class="form-control" required>
-          <label for="password">Mot de passe</label>
-        </div>
-
-        <button class="btn btn-primary btn-block my-4" type="submit">Inscription</button>
-
-        <p>Déjà inscrit ?
-            <a href="/connexion">Connectez-vous</a>
-        </p>
-      </form>
     </div>
-  </div>
 </div>
\ No newline at end of file
diff --git a/src/views/partials/head.ejs b/src/views/partials/head.ejs
index 7b0f74f..448c4ec 100644
--- a/src/views/partials/head.ejs
+++ b/src/views/partials/head.ejs
@@ -1,18 +1,17 @@
 <head>
-  <!-- Required meta tags -->
-  <meta charset="utf-8">
-  <meta name="viewport" content="width=device-width, initial-scale=1">
+    <meta charset="utf-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1">
 
-  <title><% if (page.title) { %><%= page.title %> <% } else { %> DarKou - Ma CDThèque <% } %></title>
-  <link rel="icon" type="image/png" href="/favicon.png" />
+    <title><% if (page.title) { %><%= page.title %> <% } else { %> DarKou - Ma CDThèque <% } %></title>
+    <link rel="icon" type="image/png" href="/favicon.png" />
 
-  <link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.11.2/css/all.css">
-  <link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Roboto:300,400,500,700&display=swap">
+    <link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.11.2/css/all.css">
+    <link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Roboto:300,400,500,700&display=swap">
 
 
-  <link rel="stylesheet" href="/libs/mdbootstrap/css/bootstrap.min.css">
-  <link rel="stylesheet" href="/libs/mdbootstrap/css/mdb.min.css">
-  <link rel="stylesheet" href="/libs/mdbootstrap/css/style.css">
+    <link rel="stylesheet" href="/libs/mdbootstrap/css/bootstrap.min.css">
+    <link rel="stylesheet" href="/libs/mdbootstrap/css/mdb.min.css">
+    <link rel="stylesheet" href="/libs/mdbootstrap/css/style.css">
 
-  <link rel="stylesheet" href="/css/main.css" />
+    <link rel="stylesheet" href="/css/main.css" />
 </head>
\ No newline at end of file
diff --git a/src/views/partials/header.ejs b/src/views/partials/header.ejs
index 74d6c0e..0de3caf 100644
--- a/src/views/partials/header.ejs
+++ b/src/views/partials/header.ejs
@@ -1,25 +1,24 @@
 <nav class="navbar navbar-expand-md navbar-dark primary-color sticky-top">
-  <a class="navbar-brand" href="/">CDThèque</a>
-  <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarCollapse" aria-controls="navbarCollapse" aria-expanded="false" aria-label="Toggle navigation">
+    <a class="navbar-brand" href="/">CDThèque</a>
+    <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarCollapse" aria-controls="navbarCollapse" aria-expanded="false" aria-label="Toggle navigation">
     <span class="navbar-toggler-icon"></span>
-  </button>
+    </button>
 
-  <% if ( user ) { %>
-    <div class="navbar-collapse collapse w-100 order-1 dual-collapse2">
-      <ul class="navbar-nav ml-auto">
-        <li class="nav-item">
-          <a class="nav-link" href="/upload">Ajouter une image</a>
-        </li>
-        <li class="nav-item dropdown">
-          <a class="nav-link dropdown-toggle" data-toggle="dropdown" href="#" role="button" aria-haspopup="true"
-            aria-expanded="false">Mon compte</a>
-          <div class="dropdown-menu">
-            <a class="dropdown-item" href="/gallery">Mes images</a>
-            <div class="dropdown-divider"></div>
-            <a class="dropdown-item" href="/se-deconnecter">Déconnexion</a>
-          </div>
-        </li>
-      </ul>
-    </div>
-  <% } %>
+    <% if ( user ) { %>
+        <div class="navbar-collapse collapse w-100 order-1 dual-collapse2">
+            <ul class="navbar-nav ml-auto">
+                <li class="nav-item">
+                    <a class="nav-link" href="/upload">Ajouter une image</a>
+                </li>
+                <li class="nav-item dropdown">
+                    <a class="nav-link dropdown-toggle" data-toggle="dropdown" href="#" role="button" aria-haspopup="true" aria-expanded="false">Mon compte</a>
+                    <div class="dropdown-menu">
+                        <a class="dropdown-item" href="/gallery">Mes images</a>
+                        <div class="dropdown-divider"></div>
+                        <a class="dropdown-item" href="/se-deconnecter">Déconnexion</a>
+                    </div>
+                </li>
+            </ul>
+        </div>
+    <% } %>
 </nav>
\ No newline at end of file