diff -r 973e52d4cabb -r 46efebc7e220 rt/vm/src/main/java/org/apidesign/vm4brwsr/VM.java
--- a/rt/vm/src/main/java/org/apidesign/vm4brwsr/VM.java	Tue Jun 07 06:20:20 2016 +0200
+++ b/rt/vm/src/main/java/org/apidesign/vm4brwsr/VM.java	Tue Jun 14 06:11:20 2016 +0200
@@ -333,8 +333,16 @@
     
     @Override
     protected boolean requireReference(String cn) {
-        if (cn.startsWith("net/java/html/lib/")) {
-            return false;
+        if (DirectlLibraries.isScriptLibrary(cn)) {
+            int len = cn.length();
+            if (len > 3 && 
+                cn.charAt(len - 3) == '$' && cn.charAt(len - 2) == 'A' &&
+                Character.isDigit(cn.charAt(len - 1))
+            ) {
+                // normal
+            } else {
+                return false;
+            }
         }
         return references.addIfMissing(cn);
     }