    @Test
    public void testConvertDefaultPage() throws Exception {

        String data = "\n"
            + "<html>\n" +
            "    <head>\n" +
            "    </head>\n" +
            "    <body>\n" +
            "        <h1>H1</h1>\n" +
            "<!-- ${browser.bootstrap} -->\n" +
            "    </body>\n" +
            "</html>";

        String res = UtilBase.mangleIndexPage(data, "main.js", "org.apidesign.demo.Test");

        assertNotEquals(res.indexOf("loadClass('org.apidesign.demo.Test'"), -1, "loadClass found");
        assertNotEquals(res.indexOf("script src='bck2brwsr.js'>"), -1, "init vm found");

        String res2 = UtilBase.mangleIndexPage(data, "main.js", "org.apidesign.demo.Test");
        assertEquals(res2, res, "No change then");
    }