We are using below script on click on link to download document, when document is not found/Not present once activity execution ends it is showing attached message.

How can we suppress activity status message ?

function downloadFile(activityName, className, applicationName, fileName, fileType){
var suURL = SafeURL_createFromURL(pega.u.d.url);
suURL.put("pyActivity", activityName);
suURL.put("pyClassName", className);
suURL.put('ApplicationName', applicationName);
suURL.put('FileName', fileName);
suURL.put('FileType', fileType);

var formEle = document.createElement('form');
formEle.id = "download_file";
formEle.method = "POST";
formEle.action = suURL.toURL();
if(pega.env.ua.webkit)
formEle.target = "";
document.body.appendChild(formEle);
formEle.submit();
document.body.removeChild(formEle);
}