diff --git a/app.php b/app.php
index 6e1e15a..9952fe4 100644
--- a/app.php
+++ b/app.php
@@ -40,16 +40,14 @@ function convertPHPSizeToBytes($sSize)
 
 $f3->route('GET /',
     function($f3) {
-        $f3->set('key', hash('md5', uniqid().rand()));
         $f3->set('maxSize',  min(array(convertPHPSizeToBytes(ini_get('post_max_size')), convertPHPSizeToBytes(ini_get('upload_max_filesize')))));
         $f3->set('maxPage',  ini_get('max_file_uploads') - 1);
 
         echo View::instance()->render('index.html.php');
     }
 );
-$f3->route('GET /@key',
+$f3->route('GET /sign',
     function($f3) {
-        $f3->set('key', $f3->get('PARAMS.key'));
         $f3->set('maxPage',  ini_get('max_file_uploads') - 1);
 
         echo View::instance()->render('pdf.html.php');
diff --git a/templates/index.html.php b/templates/index.html.php
index c0267fb..39757ed 100644
--- a/templates/index.html.php
+++ b/templates/index.html.php
@@ -28,26 +28,19 @@
     <script>
         (async function () {
             const cache = await caches.open('pdf');
-            var key = "<?php echo $key ?>";
-            var urlPdf = '/'+key+'/pdf';
-            var urlSignature = '/'+key;
-            var pdfHistory = {};
             var maxSize = <?php echo $maxSize ?>;
-            if(localStorage.getItem('pdfHistory')) {
-                pdfHistory = JSON.parse(localStorage.getItem('pdfHistory'));
-            }
             document.getElementById('input_pdf_upload').addEventListener('change', async function(event) {
-                if(document.getElementById('input_pdf_upload').files[0].size > maxSize) {
+                    if(document.getElementById('input_pdf_upload').files[0].size > maxSize) {
 
                     alert("Le PDF ne doit pas dépasser <?php echo round($maxSize / 1024 / 1024) ?> Mo");
                     document.getElementById('input_pdf_upload').value = "";
                     return;
                 }
+                let filename = document.getElementById('input_pdf_upload').files[0].name;
                 var response = new Response(document.getElementById('input_pdf_upload').files[0], { "status" : 200, "statusText" : "OK" });
+                let urlPdf = '/pdf/#'+filename;
                 await cache.put(urlPdf, response);
-                pdfHistory[key] = { filename: document.getElementById('input_pdf_upload').files[0].name }
-                localStorage.setItem('pdfHistory', JSON.stringify(pdfHistory));
-                document.location = urlSignature;
+                document.location = '/sign/#'+filename;
             });
             async function uploadFromUrl(url) {
                 var response = await fetch(url);
@@ -69,7 +62,7 @@
 
                 history.replaceState({}, "Signature de PDF", "/");
             }
-            if(window.location.hash) {
+            if(window.location.hash && window.location.hash.match(/^\#http/)) {
                 uploadFromUrl(window.location.hash.replace(/^\#/, ''));
             }
             window.addEventListener('hashchange', function() {
diff --git a/templates/pdf.html.php b/templates/pdf.html.php
index cfd2196..24aecde 100644
--- a/templates/pdf.html.php
+++ b/templates/pdf.html.php
@@ -130,16 +130,9 @@
     <script src="/vendor/signature_pad.umd.min.js?3.0.0-beta.3"></script>
     <script src="/vendor/opentype.min.js?1.3.3"></script>
     <script>
-    var url = '/<?php echo $key ?>/pdf';
-    var pdfHistory = {};
+    var url = '/pdf/'+window.location.hash;
     var maxPage = <?php echo $maxPage ?>;
-    var filename = null;
-    if(localStorage.getItem('pdfHistory')) {
-        pdfHistory = JSON.parse(localStorage.getItem('pdfHistory'));
-    }
-    if(pdfHistory["<?php echo $key ?>"]) {
-        filename = pdfHistory["<?php echo $key ?>"].filename;
-    }
+    var filename = window.location.hash.replace(/^\#/, '');
     </script>
     <script src="/js/app.js"></script>
   </body>