diff -r faab3aefe91c javafx-ui-webnode/test/javafx/scene/web/JavaScriptBridgeTest.java
--- a/javafx-ui-webnode/test/javafx/scene/web/JavaScriptBridgeTest.java	Thu Jun 28 13:10:57 2012 -0500
+++ b/javafx-ui-webnode/test/javafx/scene/web/JavaScriptBridgeTest.java	Thu Jun 28 15:25:02 2012 -0700
@@ -115,7 +115,7 @@
     public @Test void testJSBridge3() throws InterruptedException {
         //final Document doc = getDocumentFor("test/html/dom.html");
         final WebEngine web = getEngine();
-        
+
         submit(new Runnable() { public void run() {
             Object wino = web.executeScript("parent.parent");
             assertTrue(wino instanceof netscape.javascript.JSObject);
@@ -184,6 +184,20 @@
         }});
     }
 
+    @Test public void testJSCall1() throws InterruptedException {
+        final WebEngine web = getEngine();
+        submit(new Runnable() { public void run() {
+            assertEquals("123.7", web.executeScript("123.67.toFixed(1)"));
+            try {
+                web.executeScript("123.67.toFixed(-1)");
+                fail("JSException expected but not thrown");
+            } catch (Throwable ex) {
+                String exp = "netscape.javascript.JSException: RangeError";
+                assertEquals(exp, ex.toString().substring(0, exp.length()));
+            }
+         }});
+    }
+
     @Test public void testNullMemberName() throws InterruptedException {
         submit(new Runnable() { public void run() {
             JSObject parent = (JSObject) getEngine().executeScript("parent");