diff -r d382dacfd73f -r f5c3f68c0664 rt/vm/src/main/java/org/apidesign/vm4brwsr/Zips.java
--- a/rt/vm/src/main/java/org/apidesign/vm4brwsr/Zips.java	Tue Feb 26 16:54:16 2013 +0100
+++ b/rt/vm/src/main/java/org/apidesign/vm4brwsr/Zips.java	Wed Oct 09 17:28:39 2013 +0200
@@ -91,7 +91,7 @@
     )
     private static native byte[] callFunction(Object fn, String res);
     
-    @JavaScriptBody(args = { "msg" }, body = "console.log(msg.toString());")
+    @JavaScriptBody(args = { "msg" }, body = "if (console) console.log(msg.toString());")
     private static native void log(String msg);
 
     private byte[] findRes(String res) throws IOException {