[Htmlunit-user] JavaScript no returning ...

[jp l. <jp....@gm...>]

Hi There.

I am building a spider for a web page that is generating a link for a
PDF ... but I can't get the link ... I incremented the TO to 60.000
and tried different Browsers ... but not luck ... I am using 2.27
version.

here is my code:

public void start() throws Exception {

    try {

String folioNumber = "928540be-cdeb-48b0-9e93-3d0f9b29fed1";

        try (final WebClient webClient = new
WebClient(BrowserVersion.BEST_SUPPORTED)) {

            webClient.getOptions().setThrowExceptionOnScriptError(false);

            final HtmlPage home =
webClient.getPage("https://www.afphabitat.cl/herramientas-y-servicios/validar-certificados/");

            webClient.waitForBackgroundJavaScript(60000);

            final HtmlInput cuitInput =
home.getFirstByXPath("//*[@id=\"folio\"]");
            cuitInput.setValueAttribute(folioNumber);

            final HtmlAnchor validarButton =
home.getFirstByXPath("//*[@id=\"form\"]/div/div/div[2]/div[2]/a");
            HtmlPage result = validarButton.click();
            webClient.waitForBackgroundJavaScript(60000);

            final HtmlAnchor pdfLink =
result.getFirstByXPath("//*[@id=\"descargapdf\"]");

            Assert.assertTrue(StringUtils.isNotEmpty(pdfLink.getHrefAttribute()));

        }

    } catch (Exception e) {
        throw e;
    }
}

any clue what could be the issue ?