diff --git a/js/privatebin.js b/js/privatebin.js
index a512283b..63087a54 100644
--- a/js/privatebin.js
+++ b/js/privatebin.js
@@ -1839,7 +1839,7 @@ jQuery.PrivateBin = function($, sjcl, Base64, RawDeflate) {
          *
          * @name   PasteViewer.setFormat
          * @function
-         * @param {string} newFormat the the new format
+         * @param {string} newFormat the new format
          */
         me.setFormat = function(newFormat)
         {
@@ -1848,7 +1848,7 @@ jQuery.PrivateBin = function($, sjcl, Base64, RawDeflate) {
                 return;
             }
 
-            // needs to update display too, if from or to Markdown is switched
+            // needs to update display too, if we switch from or to Markdown
             if (format === 'markdown' || newFormat === 'markdown') {
                 isDisplayed = false;
             }
@@ -1977,6 +1977,9 @@ jQuery.PrivateBin = function($, sjcl, Base64, RawDeflate) {
 
             // get default option from template/HTML or fall back to set value
             format = Model.getFormatDefault() || format;
+            text = '';
+            isDisplayed = false;
+            isChanged = true;
         }
 
         return me;
diff --git a/js/test.js b/js/test.js
index 23238469..8f815672 100644
--- a/js/test.js
+++ b/js/test.js
@@ -22,6 +22,10 @@ global.sjcl = require('./sjcl-1.0.6');
 global.Base64 = require('./base64-2.1.9').Base64;
 global.RawDeflate = require('./rawdeflate-0.5').RawDeflate;
 global.RawDeflate.inflate = require('./rawinflate-0.3').RawDeflate.inflate;
+require('./prettify');
+global.prettyPrint = window.PR.prettyPrint;
+global.prettyPrintOne = window.PR.prettyPrintOne;
+global.showdown = require('./showdown-1.6.1');
 require('./bootstrap-3.3.7');
 require('./privatebin');
 
@@ -1374,3 +1378,70 @@ describe('Editor', function () {
     });
 });
 
+describe('PasteViewer', function () {
+    describe('run, hide, getText, setText, getFormat, setFormat & isPrettyPrinted', function () {
+        this.timeout(30000);
+        before(function () {
+            cleanup();
+        });
+
+        jsc.property(
+            'displays text according to format',
+            jsc.elements(['plaintext', 'markdown', 'syntaxhighlighting']),
+            'nestring',
+            function (format, text) {
+                var clean = jsdom(),
+                    results = [];
+                $('body').html(
+                    '<div id="placeholder" class="hidden">+++ no paste text ' +
+                    '+++</div><div id="prettymessage" class="hidden"><pre ' +
+                    'id="prettyprint" class="prettyprint linenums:1"></pre>' +
+                    '</div><div id="plaintext" class="hidden"></div>'
+                );
+                $.PrivateBin.PasteViewer.init();
+                $.PrivateBin.PasteViewer.setFormat(format);
+                $.PrivateBin.PasteViewer.setText('');
+                results.push(
+                    $('#placeholder').hasClass('hidden') &&
+                    $('#prettymessage').hasClass('hidden') &&
+                    $('#plaintext').hasClass('hidden') &&
+                    $.PrivateBin.PasteViewer.getFormat() == format &&
+                    $.PrivateBin.PasteViewer.getText() == ''
+                );
+                $.PrivateBin.PasteViewer.run();
+                results.push(
+                    !$('#placeholder').hasClass('hidden') &&
+                    $('#prettymessage').hasClass('hidden') &&
+                    $('#plaintext').hasClass('hidden')
+                );
+                $.PrivateBin.PasteViewer.hide();
+                results.push(
+                    $('#placeholder').hasClass('hidden') &&
+                    $('#prettymessage').hasClass('hidden') &&
+                    $('#plaintext').hasClass('hidden')
+                );
+                $.PrivateBin.PasteViewer.setText(text);
+                $.PrivateBin.PasteViewer.run();
+                results.push(
+                    $('#placeholder').hasClass('hidden') &&
+                    !$.PrivateBin.PasteViewer.isPrettyPrinted() &&
+                    $.PrivateBin.PasteViewer.getText() == text
+                );
+                if (format == 'markdown') {
+                    results.push(
+                        $('#prettymessage').hasClass('hidden') &&
+                        !$('#plaintext').hasClass('hidden')
+                    );
+                } else {
+                    results.push(
+                        !$('#prettymessage').hasClass('hidden') &&
+                        $('#plaintext').hasClass('hidden')
+                    );
+                }
+                clean();
+                return results.every(element => element);
+            }
+        );
+    });
+});
+
diff --git a/tpl/bootstrap.php b/tpl/bootstrap.php
index 37442ff0..0bf06854 100644
--- a/tpl/bootstrap.php
+++ b/tpl/bootstrap.php
@@ -69,7 +69,7 @@ if ($MARKDOWN):
 <?php
 endif;
 ?>
-		<script type="text/javascript" src="js/privatebin.js?<?php echo rawurlencode($VERSION); ?>" integrity="sha512-rDOydUZZZd8/nPpB9EekhSoXRF1ezh7veCT1ImGX6lH2gupGIboh6O7S3I9r/B21ytB22AsbrTBGjZ4ORvpFSQ==" crossorigin="anonymous"></script>
+		<script type="text/javascript" src="js/privatebin.js?<?php echo rawurlencode($VERSION); ?>" integrity="sha512-NWkO7YojpZyTn/xpIjVwo+VBSVKIfxHjE9NC41GzcWgt3w36XNZ+wYZZjXLJh44rBj9qBmZiXvvt9g5iNkadlg==" crossorigin="anonymous"></script>
 		<!--[if lt IE 10]>
 		<style type="text/css">body {padding-left:60px;padding-right:60px;} #ienotice {display:block;} #oldienotice {display:block;}</style>
 		<![endif]-->
diff --git a/tpl/page.php b/tpl/page.php
index 46e4d7dd..5d74bcf3 100644
--- a/tpl/page.php
+++ b/tpl/page.php
@@ -47,7 +47,7 @@ if ($MARKDOWN):
 <?php
 endif;
 ?>
-		<script type="text/javascript" src="js/privatebin.js?<?php echo rawurlencode($VERSION); ?>" integrity="sha512-rDOydUZZZd8/nPpB9EekhSoXRF1ezh7veCT1ImGX6lH2gupGIboh6O7S3I9r/B21ytB22AsbrTBGjZ4ORvpFSQ==" crossorigin="anonymous"></script>
+		<script type="text/javascript" src="js/privatebin.js?<?php echo rawurlencode($VERSION); ?>" integrity="sha512-NWkO7YojpZyTn/xpIjVwo+VBSVKIfxHjE9NC41GzcWgt3w36XNZ+wYZZjXLJh44rBj9qBmZiXvvt9g5iNkadlg==" crossorigin="anonymous"></script>
 		<!--[if lt IE 10]>
 		<style type="text/css">body {padding-left:60px;padding-right:60px;} #ienotice {display:block;} #oldienotice {display:block;}</style>
 		<![endif]-->