diff -r d39fbe061519 -r 691c5cd3fb93 rt/launcher/src/main/java/org/apidesign/bck2brwsr/launcher/Launcher.java
--- a/rt/launcher/src/main/java/org/apidesign/bck2brwsr/launcher/Launcher.java	Wed Mar 20 11:53:10 2013 +0100
+++ b/rt/launcher/src/main/java/org/apidesign/bck2brwsr/launcher/Launcher.java	Thu Apr 18 05:47:45 2013 +0200
@@ -80,7 +80,7 @@
      */
     public static Launcher createBrowser(String cmd) {
         final Bck2BrwsrLauncher l;
-        if ("fx".equals(cmd)) {
+        if ("fx".equals(cmd) || cmd == null) {
             l = new WebViewLauncher();
         } else {
             l = new Bck2BrwsrLauncher(cmd);