diff --git a/public/src/client/register.js b/public/src/client/register.js
index 62dbc41..ba66da2 100644
--- a/public/src/client/register.js
+++ b/public/src/client/register.js
@@ -131,7 +131,7 @@ define('forum/register', [
                 if (results.every(obj => obj.status === 'rejected')) {
                     showSuccess(username_notify, successIcon);
                 } else {
-                    showError(username_notify, '[[error:username-taken]]');
+                    showError(username_notify, '[[error:username-taken, "${username}suffix"]]');
                 }
 
                 callback();
diff --git a/public/src/modules/share.js b/public/src/modules/share.js
index ea2f131..0f5ce4d 100644
--- a/public/src/modules/share.js
+++ b/public/src/modules/share.js
@@ -3,12 +3,11 @@
 
 define('share', ['hooks'], function (hooks) {
     const module = {};
+    const baseUrl = window.location.protocol + '//' + window.location.host;
 
     module.addShareHandlers = function (name) {
-        const baseUrl = window.location.protocol + '//' + window.location.host;
-
         function openShare(url, urlToPost, width, height) {
-            window.open(url + encodeURIComponent(baseUrl + config.relative_path + urlToPost), '_blank', 'width=' + width + ',height=' + height + ',scrollbars=no,status=no');
+            window.open(url, '_blank', 'width=' + width + ',height=' + height + ',scrollbars=no,status=no');
             hooks.fire('action:share.open', {
                 url: url,
                 urlToPost: urlToPost,
@@ -32,11 +31,36 @@ define('share', ['hooks'], function (hooks) {
         });
 
         addHandler('[component="share/twitter"]', function () {
-            return openShare('https://twitter.com/intent/tweet?text=' + encodeURIComponent(name) + '&url=', getPostUrl($(this)), 550, 420);
+            const postUrl = getPostUrl($(this));
+            const twitter_url = `https://twitter.com/intent/tweet?text=${encodeURIComponent(name)}&url=${encodeURIComponent(postUrl)}`;
+            return openShare(twitter_url, postUrl, 550, 420);
         });
 
         addHandler('[component="share/facebook"]', function () {
-            return openShare('https://www.facebook.com/sharer/sharer.php?u=', getPostUrl($(this)), 626, 436);
+            const postUrl = getPostUrl($(this));
+            const facebook_url = `https://www.facebook.com/sharer/sharer.php?u=${encodeURIComponent(postUrl)}`;
+            return openShare(facebook_url, postUrl, 626, 436);
+        });
+
+        addHandler('[component="share/whatsapp"]', function () {
+            const postUrl = getPostUrl($(this));
+            const message = encodeURIComponent(name) + ' - ' + encodeURIComponent(postUrl);
+            const whatsapp_url = config.useragent.isMobile ?
+                `whatsapp://send?text=${message}` :
+                `https://wa.me/?text=${message}`;
+            return openShare(whatsapp_url, postUrl, 626, 436);
+        });
+
+        addHandler('[component="share/telegram"]', function () {
+            const postUrl = getPostUrl($(this));
+            const telegram_url = `https://t.me/share/url?text=${encodeURIComponent(name)}&url=${encodeURIComponent(postUrl)}`;
+            return openShare(telegram_url, postUrl, 626, 436);
+        });
+
+        addHandler('[component="share/linkedin"]', function () {
+            const postUrl = getPostUrl($(this));
+            const linkedin_url = `https://www.linkedin.com/sharing/share-offsite/?url=${encodeURIComponent(postUrl)}`;
+            return openShare(linkedin_url, postUrl, 626, 436);
         });
 
         hooks.fire('action:share.addHandlers', { openShare: openShare });
@@ -48,7 +72,8 @@ define('share', ['hooks'], function (hooks) {
 
     function getPostUrl(clickedElement) {
         const pid = parseInt(clickedElement.parents('[data-pid]').attr('data-pid'), 10);
-        return '/post' + (pid ? '/' + (pid) : '');
+        const path = '/post' + (pid ? '/' + (pid) : '');
+        return baseUrl + config.relative_path + path;
     }
 
     return module;