don't add utm_source if referrer is binary.com or binary.me

Author: negarn

src/root_files/app/index.html

@@ -48,8 +48,13 @@
                 var loginid      = localStorage.getItem('active_loginid');
                 var client_info  = JSON.parse(localStorage.getItem('client.accounts') || '{}')[loginid];
                 var is_logged_in = client_info && client_info['token'];
-                var search       = (window.location.search ? window.location.search : '') + (document.referrer ? ('?utm_source=' + document.referrer) : '');
-                window.location.href = (lang || 'en').toLowerCase() + '/' + (is_logged_in ? 'trading' : 'home') + '.html' + search;
+
+                var search                = window.location.search ? window.location.search : '';
+                var has_external_referrer = document.referrer && !/\.binary\.(com|me)/.test(document.referrer);
+                var has_utm_source        = /utm_source/.test(search);
+                var utm_source            = has_external_referrer && !has_utm_source ? ((search ? '&' : '?') + 'utm_source=' + document.referrer) : '';
+
+                window.location.href = (lang || 'en').toLowerCase() + '/' + (is_logged_in ? 'trading' : 'home') + '.html' + search + utm_source;
             }
 
             if (/^https:\/\/staging\.binary\.com\/translations\//i.test(window.location.href)) {

src/root_files/app_2/index.html

@@ -47,8 +47,13 @@
                 var loginid      = localStorage.getItem('active_loginid');
                 var client_info  = JSON.parse(localStorage.getItem('client.accounts') || '{}')[loginid];
                 var is_logged_in = client_info && client_info['token'];
-                var search       = (window.location.search ? window.location.search : '') + (document.referrer ? ('?utm_source=' + document.referrer) : '');
-                window.location.href = (/\/app\//.test(window.location.pathname) ? '' : 'app/') + (lang || 'en').toLowerCase() + '/trade' + search;
+
+                var search                = window.location.search ? window.location.search : '';
+                var has_external_referrer = document.referrer && !/\.binary\.(com|me)/.test(document.referrer);
+                var has_utm_source        = /utm_source/.test(search);
+                var utm_source            = has_external_referrer && !has_utm_source ? ((search ? '&' : '?') + 'utm_source=' + document.referrer) : '';
+
+                window.location.href = (/\/app\//.test(window.location.pathname) ? '' : 'app/') + (lang || 'en').toLowerCase() + '/trade' + search + utm_source;
             }
 
             if (document.referrer) {