updated authentication for welsh url

components/myportal/servicebanner.js

@@ -18,7 +18,7 @@ const ServiceBanner = (props) => {
         );
     };
 
-    const handleLogout = () => {
+    const handleLogout = (locale) => {
         console.info("////////////\n" + "logout" + "\n////////////");
         window.localStorage.clear(),
             destroyCookie(null, "next-auth.csrf-token"),
@@ -26,7 +26,9 @@ const ServiceBanner = (props) => {
             destroyCookie(null, "next-auth.callback-url", { path: "/" }),
             destroyCookie(null, "pedw_locale", { path: "/" }),
             destroyCookie(null, "pinsUser", { path: "/" }),
-            signOut({ callbackUrl: "/logout" });
+            signOut({
+                callbackUrl: locale == "cy" ? "/cy/allgofnodi" : "/logout",
+            });
     };
 
     const portalLogoLink = [
@@ -87,9 +89,11 @@ const ServiceBanner = (props) => {
                 </div>
                 <div>
                     <Link
-                        href={router.locale == "cy" ? "/allgofnodi" : "/logout"}
+                        href={
+                            router.locale == "cy" ? "/cy/allgofnodi" : "/logout"
+                        }
                         onClick={() => {
-                            handleLogout();
+                            handleLogout(router.locale);
                         }}
                         className="govuk-header__link "
                     >