MochiKit.Async.XMLHttpRequestError Error while invoking a hyperlink

Hi,

I have a report , which has a sub report embedded in it . IN the sub report, there is a filed, that has a hyper link. The hyperlinks is  this

"https://myserver.com/myportal/generateDocument?reportLink=true&filePath=" + CurrentFieldValue

and when I hover the mouse over the field, the console shows up

javascript.parent.bobj.event.publish('hyperlinked','MyReport','urs=https%3A%2F%2Fmyserver.com%2Fportal%2FgenerateDocument%3FreportLink%3Dtrue%26filePath%3DNTkxNA%3D%3D&target=_self')

When I click on the link, the error message pops up

Unable to process your request

message: Request failed

number: 0

name: MochiKit.Async.XMLHttpRequestError

but , the document opens .It is a pdf document , which is suppose to be opened, and it opens up. But I get the error message.

Any clues how to suppress the error message pop-up window ?

Thanks