diff --git a/js/common.js b/js/common.js
index 5ad72afd..346e1423 100644
--- a/js/common.js
+++ b/js/common.js
@@ -152,3 +152,22 @@ exports.urlToString = function (url) {
         encodeURI(url.query.join('').replace(/^&+|&+$/gm,'')) : '') +
         (url.fragment ? '#' + encodeURI(url.fragment) : '');
 };
+
+exports.enableClipboard = function () {
+    navigator.clipboard = (function () {
+        let savedText = "";
+    
+        async function writeText(text) {
+            savedText = text;
+        };
+    
+        async function readText() {
+            return savedText;
+        };
+    
+        return {
+            writeText,
+            readText,
+        };
+    })();
+};
diff --git a/js/privatebin.js b/js/privatebin.js
index a06d80b0..b67de8ad 100644
--- a/js/privatebin.js
+++ b/js/privatebin.js
@@ -5459,9 +5459,7 @@ jQuery.PrivateBin = (function($, RawDeflate) {
             copyIcon,
             successIcon,
             shortcutHint,
-            url,
-            testMode,
-            testClipboard;
+            url;
 
         /**
          * Handle copy to clipboard button click
@@ -5542,11 +5540,7 @@ jQuery.PrivateBin = (function($, RawDeflate) {
          * @function
          */
         function saveToClipboard(text) {
-            if (testMode) {
-                testClipboard = text;
-            } else {
-                navigator.clipboard.writeText(text);
-            }
+            navigator.clipboard.writeText(text);
         };
 
         /**
@@ -5612,35 +5606,6 @@ jQuery.PrivateBin = (function($, RawDeflate) {
             url = newUrl;
         };
 
-        /**
-         * Enable test mode, using for unit tests
-         * 
-         * @name CopyToClipboard.testMode
-         * @function
-         */
-        me.enableTestMode = function () {
-            testMode = true;
-        };
-
-        /**
-         * Read text from user's clipboard
-         * 
-         * @name CopyToClipboard.readFromClipboard
-         * @function
-         * @returns {string}
-         */
-        me.readFromClipboard = function () {
-            let clipboardData = "";
-
-            if (testMode) {
-                clipboardData = testClipboard;
-            } else {
-                clipboardData = navigator.clipboard.readText();
-            }
-
-            return clipboardData;
-        };
-
         /**
          * Initialize
          *
diff --git a/js/test/CopyToClipboard.js b/js/test/CopyToClipboard.js
index 00ec7438..9d2df2f1 100644
--- a/js/test/CopyToClipboard.js
+++ b/js/test/CopyToClipboard.js
@@ -1,12 +1,13 @@
 'use strict';
-var common = require('../common');
+const common = require('../common');
 
 describe('CopyToClipboard', function() {
     this.timeout(30000);
 
     describe ('Copy paste co clipboard', function () {
-        jsc.property('Copy with button click', common.jscFormats(), 'nestring', function (format, text) {
+        jsc.property('Copy with button click', common.jscFormats(), 'nestring', async function (format, text) {
             var clean = jsdom();
+            common.enableClipboard();
     
             $('body').html(
                 '<div id="placeholder" class="hidden">+++ no paste text ' +
@@ -23,23 +24,23 @@ describe('CopyToClipboard', function() {
             $.PrivateBin.PasteViewer.run();
     
             $.PrivateBin.CopyToClipboard.init();
-            $.PrivateBin.CopyToClipboard.enableTestMode();
             
             $('#prettyMessageCopyBtn').trigger('click');
-            
-            const copiedText = $.PrivateBin.CopyToClipboard.readFromClipboard();
+
+            const savedToClipboardText = await navigator.clipboard.readText();
     
             clean();
     
-            return text === copiedText;
+            return text === savedToClipboardText;
         });
 
         /**
          * Unfortunately in JSVerify impossible to check if copy with shortcut when user selected some text on the page
          * (the copy paste to clipboard should not work in this case) due to lucking window.getSelection() in jsdom.
          */
-        jsc.property('Copy with keyboard shortcut',  common.jscFormats(), 'nestring', function (format, text) {
+        jsc.property('Copy with keyboard shortcut',  common.jscFormats(), 'nestring', async function (format, text) {
             var clean = jsdom();
+            common.enableClipboard();
     
             $('body').html(
                 '<div id="placeholder">+++ no paste text ' +
@@ -56,11 +57,10 @@ describe('CopyToClipboard', function() {
             $.PrivateBin.PasteViewer.run();
     
             $.PrivateBin.CopyToClipboard.init();
-            $.PrivateBin.CopyToClipboard.enableTestMode();
 
             $('body').trigger('copy');
 
-            const copiedTextWithoutSelectedText = $.PrivateBin.CopyToClipboard.readFromClipboard();
+            const copiedTextWithoutSelectedText = await navigator.clipboard.readText();
 
             clean();
 
@@ -69,18 +69,18 @@ describe('CopyToClipboard', function() {
     });
 
 
-    jsc.property('Copy link to clipboard', 'nestring', function (text) {
+    jsc.property('Copy link to clipboard', 'nestring', async function (text) {
         var clean = jsdom();
+        common.enableClipboard();
 
         $('body').html('<button id="copyLink"></button>');
 
         $.PrivateBin.CopyToClipboard.init();
-        $.PrivateBin.CopyToClipboard.enableTestMode();
         $.PrivateBin.CopyToClipboard.setUrl(text);
 
         $('#copyLink').trigger('click');
 
-        const copiedText = $.PrivateBin.CopyToClipboard.readFromClipboard();
+        const copiedText = await navigator.clipboard.readText();
 
         clean();
 
diff --git a/lib/Configuration.php b/lib/Configuration.php
index b09c6433..d181cf99 100644
--- a/lib/Configuration.php
+++ b/lib/Configuration.php
@@ -108,7 +108,7 @@ 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-RbRvz3FPpNO23J/RQUvPfH118Yugz0nBSsqGnMlbr0rfTYR0G0/PIhJTymlR8P2p3sdmtd80m1fUrbdY7/gbEA==',
+            'js/privatebin.js'       => 'sha512-POa+8KNXFFwJFsqp7r9APmR5Rc1w2l363y+OScSzLCySrHN7UhOOgt1VH/o8mVddFvvUozj3FZVmdkTxRlrS5g==',
             'js/purify-3.2.3.js'     => 'sha512-m8Wa/I//YoYMiIahBxDDwYfTnycl+i2DwH58nR8ps1o4KWqXzF8k1K4qHDgAz2HSQFNCNNKH/Qcbfu/jLOuhuQ==',
             'js/rawinflate-0.3.js'   => 'sha512-g8uelGgJW9A/Z1tB6Izxab++oj5kdD7B4qC7DHwZkB6DGMXKyzx7v5mvap2HXueI2IIn08YlRYM56jwWdm2ucQ==',
             'js/showdown-2.1.0.js'   => 'sha512-WYXZgkTR0u/Y9SVIA4nTTOih0kXMEd8RRV6MLFdL6YU8ymhR528NLlYQt1nlJQbYz4EW+ZsS0fx1awhiQJme1Q==',