diff --git a/js/privatebin.js b/js/privatebin.js
index 51f24e8a..f4805867 100644
--- a/js/privatebin.js
+++ b/js/privatebin.js
@@ -1547,7 +1547,7 @@ jQuery.PrivateBin = (function($) {
                     // string, so we re-add them if necessary
                     symmetricKey = CryptTool.base58decode(newKey).padStart(32, '\u0000');
                 } catch(e) {
-                    symmetricKey = newKey;
+                    throw 'encryption key of unsupported format given or incomplete, mangled URL';
                 }
             }
 
@@ -5727,12 +5727,8 @@ jQuery.PrivateBin = (function($) {
                 Model.getPasteKey();
             } catch (err) {
                 console.error(err);
-
-                // missing decryption key (or paste ID) in URL?
-                if (window.location.hash.length === 0) {
-                    Alert.showError('Cannot decrypt paste: Decryption key missing in URL (Did you use a redirector or an URL shortener which strips part of the URL?)');
-                    return;
-                }
+                Alert.showError('Cannot decrypt paste: Decryption key missing in URL (Did you use a redirector or an URL shortener which strips part of the URL?)');
+                return;
             }
 
             // check if we should request loading confirmation
diff --git a/js/test/Model.js b/js/test/Model.js
index 77adbead..417c5e5b 100644
--- a/js/test/Model.js
+++ b/js/test/Model.js
@@ -104,8 +104,8 @@ describe('Model', function () {
             'throws exception on empty query string',
             common.jscUrl(true, false),
             function (url) {
-                let clean = jsdom('', {url: common.urlToString(url)}),
-                    result = false;
+                const clean = jsdom('', {url: common.urlToString(url)});
+                let result = false;
                 try {
                     $.PrivateBin.Model.getPasteId();
                 }
@@ -126,15 +126,21 @@ describe('Model', function () {
         });
 
         jsc.property(
-            'returns the fragment of a v1 URL',
+            'throws exception on v1 URLs',
             common.jscUrl(),
             function (url) {
                 url.fragment = '0OIl'; // any non-base58 string
-                const clean = jsdom('', {url: common.urlToString(url)}),
-                    result = $.PrivateBin.Model.getPasteKey();
+                const clean = jsdom('', {url: common.urlToString(url)});
+                let result = false;
+                try {
+                    $.PrivateBin.Model.getPasteId();
+                }
+                catch(err) {
+                    result = true;
+                }
                 $.PrivateBin.Model.reset();
                 clean();
-                return url.fragment === result;
+                return result;
             }
         );
         jsc.property(
diff --git a/lib/Configuration.php b/lib/Configuration.php
index d46f8947..95190446 100644
--- a/lib/Configuration.php
+++ b/lib/Configuration.php
@@ -116,7 +116,7 @@ class Configuration
             'js/kjua-0.9.0.js'       => 'sha512-CVn7af+vTMBd9RjoS4QM5fpLFEOtBCoB0zPtaqIDC7sF4F8qgUSRFQQpIyEDGsr6yrjbuOLzdf20tkHHmpaqwQ==',
             'js/legacy.js'           => 'sha512-UxW/TOZKon83n6dk/09GsYKIyeO5LeBHokxyIq+r7KFS5KMBeIB/EM7NrkVYIezwZBaovnyNtY2d9tKFicRlXg==',
             'js/prettify.js'         => 'sha512-puO0Ogy++IoA2Pb9IjSxV1n4+kQkKXYAEUtVzfZpQepyDPyXk8hokiYDS7ybMogYlyyEIwMLpZqVhCkARQWLMg==',
-            'js/privatebin.js'       => 'sha512-Zn0Y6qS8Wo8R1TivyULWSJsb+Yyb1YJkaobfurZcTUHxTUiH+bmcT8naAGTrxmDNNd9E3rWUM/968/Zt9aJfow==',
+            'js/privatebin.js'       => 'sha512-FSrG36x5zv0ERkagznlfQSE4Dpnvf0Sm6F1a21Qn874ALt9OxqUObUTe7D8tmTBCo0jh5i2B4dh8wIa4HSWB8Q==',
             'js/purify-3.2.6.js'     => 'sha512-zqwL4OoBLFx89QPewkz4Lz5CSA2ktU+f31fuECkF0iK3Id5qd3Zpq5dMby8KwHjIEpsUgOqwF58cnmcaNem0EA==',
             'js/showdown-2.1.0.js'   => 'sha512-WYXZgkTR0u/Y9SVIA4nTTOih0kXMEd8RRV6MLFdL6YU8ymhR528NLlYQt1nlJQbYz4EW+ZsS0fx1awhiQJme1Q==',
             'js/zlib-1.3.1-1.js'     => 'sha512-5bU9IIP4PgBrOKLZvGWJD4kgfQrkTz8Z3Iqeu058mbQzW3mCumOU6M3UVbVZU9rrVoVwaW4cZK8U8h5xjF88eQ==',
diff --git a/lib/Model/Paste.php b/lib/Model/Paste.php
index bf64ce10..66684d8b 100644
--- a/lib/Model/Paste.php
+++ b/lib/Model/Paste.php
@@ -80,20 +80,6 @@ class Paste extends AbstractModel
             $this->delete();
         }
 
-        // set formatter for the view in version 1 pastes.
-        if (array_key_exists('data', $data) && !array_key_exists('formatter', $data['meta'])) {
-            // support < 0.21 syntax highlighting
-            if (array_key_exists('syntaxcoloring', $data['meta']) && $data['meta']['syntaxcoloring'] === true) {
-                $data['meta']['formatter'] = 'syntaxhighlighting';
-            } else {
-                $data['meta']['formatter'] = $this->_conf->getKey('defaultformatter');
-            }
-        }
-
-        // support old paste format with server wide salt
-        if (!array_key_exists('salt', $data['meta'])) {
-            $data['meta']['salt'] = ServerSalt::get();
-        }
         $data['comments']       = array_values($this->getComments());
         $data['comment_count']  = count($data['comments']);
         $data['comment_offset'] = 0;
diff --git a/tst/ControllerTest.php b/tst/ControllerTest.php
index a3ebb652..e2ca4ffa 100644
--- a/tst/ControllerTest.php
+++ b/tst/ControllerTest.php
@@ -919,27 +919,4 @@ class ControllerTest extends TestCase
         );
         $this->assertFalse($this->_data->exists(Helper::getPasteId()), 'paste successfully deleted');
     }
-
-    /**
-     * @runInSeparateProcess
-     */
-    public function testDeleteMissingPerPasteSalt()
-    {
-        $paste = Helper::getPaste();
-        unset($paste['meta']['salt']);
-        $this->_data->create(Helper::getPasteId(), $paste);
-        $this->assertTrue($this->_data->exists(Helper::getPasteId()), 'paste exists before deleting data');
-        $_GET['pasteid']     = Helper::getPasteId();
-        $_GET['deletetoken'] = hash_hmac('sha256', Helper::getPasteId(), ServerSalt::get());
-        ob_start();
-        new Controller;
-        $content = ob_get_contents();
-        ob_end_clean();
-        $this->assertMatchesRegularExpression(
-            '#<div[^>]*id="status"[^>]*>.*Paste was properly deleted\.#s',
-            $content,
-            'outputs deleted status correctly'
-        );
-        $this->assertFalse($this->_data->exists(Helper::getPasteId()), 'paste successfully deleted');
-    }
 }