fixed WEB-27

Author: nbaars

src/main/java/org/owasp/webgoat/HammerHead.java

@@ -134,8 +134,8 @@ public void doPost(HttpServletRequest request, HttpServletResponse response) thr
                 logger.debug("Response already committed, exiting");
                 return;
             }
-
-            if ("true".equals(request.getParameter("start"))) {
+            
+            if ("true".equals(request.getParameter("start")) || request.getQueryString() == null) {
                 logger.warn("Redirecting to start controller");
                 response.sendRedirect("start.mvc");
                 return;