window.open is not working when I click to open the popup

When I click to open the new pop-up in Edge, it’s getting the error message Uncaught SyntaxError: Unexpected token ')'. That error only cause when I use window.open instead of window.location.
I didn’t use the window.location because it close up the first popup page and it replace the first popup page with the second one. But when I try to use window.open, it doesn’t response. I want to make is not to close the first popup when I click to open the second popup page. Is there anyway to do that? Also, when I add target=_blank in html, it just showing action:blocked and also tryna added target=popupand shows action:untitled.

$chrome_link = "http://example.com:8080/web/tools/information_hub1008x/lotbook/draw_def.php?lotid=".$getlotid."&tab=".$tab."&ocr=".$getocr."&postid=".$Now;
echo "<td rowspan=\"4\" colspan=\"4\"><a href=\"javascript:void()\" onclick=\"openURL('".$chrome_link."','".$tab."')\">Please Click me to Draw the Defect</a></td>";
    echo    "</tr>";

Below is JavaScript.

    function openURL(link,tab)
{

    if(tab != 'qualitychk' && tab != 'fabqadefchk'){
        var o = document.getElementsByName('waflist');

        for(z=0; z<o.length; z++)
        {
            if(o[z].checked == true)
            {
                var waf = o[z].value;
            }

        }

        link = link + '&curwaf=' + waf;
    }

  var ua = window.navigator.userAgent;
            if (ua.indexOf("Edg") > 0) {  //Edge
                window.open = link;
            }
            else if (ua.indexOf("Trident") > 0 || ua.indexOf("Chrome") > 0) {  //IE or Chrome
                window.open = ("microsoft-edge:link");
                
            }
}

>Solution :

window.open is a function, not a property:

console.log(typeof window.open);

So you need to call it appropriately. Also note you need to actually concatenate the link into your call:

window.open(link);
window.open("microsoft-edge:" + link);