window.open() rather than ajax url

I am trying to get the result of submit() from an editor call to cause a window.open() to get the result of the GET call to an URL.

Here is what I have that does the GET request, but of course datatables is waiting for the json response which won't happen.

In fact what will happen is that the URL I want to GET towards will create a PDF and send that to the new window.

    var labeleditor = new $.fn.dataTable.Editor( {
        "ajax": {
            "url": "pdf/label.php",
            "type": "GET",
        },
        "formOptions": {
            main: {
                blurOnBackground: false
            }
        },
        "fields": [
            {
                "name": "printrun",
                "label": "Enter the Number of Labels to Print"
            }
        ],
    i18n: {
       create: { title: "Print Blank Valve Labels" }
            }
     });

So my PHP script at pdf/label.php can receive the $_GET string no problem and decodes the value supplied for "printrun", and even generates the PDF file as required.

But I want a new browser window - I assume via window.open(), to capture the generated PDF result, not ajax like a normal DT operation.

thanks.