JS function not triggered with PrimeFaces.monitorDownload

I'm working in file downloading with Primefaces 4.0. I just want to trigger a JS function when download completes, but seems not to work (tried in Firefox and Google Chrome). My test case looks similar to what's done in the PF docs:

<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"
    xmlns:f="http://java.sun.com/jsf/core"
    xmlns:h="http://java.sun.com/jsf/html"
    xmlns:ui="http://java.sun.com/jsf/facelets"
    xmlns:p="http://primefaces.org/ui">
<h:head />

<h:body>
    <script type="text/javascript">
        function startMessage() {
            alert("Download started!");
        }
        function finishMessage() {
            alert("Download finished!");
        }
    </script>
    <h:form>
        <p:commandButton value="Download" ajax="false"
            icon="ui-icon-arrowreturnthick-1-s"
            onclick="PrimeFaces.monitorDownload(startMessage, finishMessage)">
            <p:fileDownload value="#{bean.file}" />
        </p:commandButton>
    </h:form>
</h:body>
</html>

@ManagedBean
@ViewScoped
public class Bean implements Serializable {

    public StreamedContent getFile() {
        return new DefaultStreamedContent(new ByteArrayInputStream(new byte[0]));
    }

}

The alert is triggered when download starts, but not when download finishes. Could anyone else give it a try?

JS function not triggered with PrimeFaces.monitorDownload

2 Answers