Printing In FireFox Throws Up An Ajax Error

[Frederick]

When printing a report in Firefox, I get the attached Ajax error. The same report printed in Chrome, Edge or Opera does not display the error.

I am using a TUniURLFrame to display the PDF file and in the control's OnFrameLoaded event, I have the following code:-

TUniURLFrame.JSInterface.JSCode(#1'.iframe.contentDocument.addEventListener("keydown", function(e){ajaxRequest('+ Self.WebForm.JSForm.JSName +', "keydown", ["key="+e.keyCode])});')

What am I missing here?

--
Frederick
(UniGUI Complete - Professional Edition 1.90.0.1546)

 

[Frederick]

Is there a solution for the above error? I am still getting it for version 1.90.0.1549.