test dynamic header

js/headfoot.js

@@ -98,7 +98,7 @@ function head(){
                 headlink.remove();
                 let headform = document.createElement('form');
                 headform.setAttribute("th:action", "@{/logout}");
-                headform.setAttribute("method","POST");
+                headform.setAttribute("method","post");
                 let headbutton = document.createElement('button');
                 headbutton.name='logout';
                 headbutton.type="Submit";