How to open new Popup window with custom size

Dear supporters,
I want to open content in a new popp window and set its size to fit my media. I tried the solution Josh proposed via js script: (See answer #167345)

 function newWindow(contentsURL, winName, winProps, width, height) {
     if (!winName) var winName = "CALCULATOR";
     if (!winProps) var winProps = "menubar=0,toolbar=0,resizable=0,location=0,status=0,scrollbars=0";
     if (!width) var w = 620; 
     else w = width;
     if (!height) var h = 400;
     else h = height;
     var x = 100; y = 100;
     var args = "width=" + w + ",height=" + h
      + "," + winProps
      + ",screenx=" + x + ",screeny=" + y
      + ",left=" + x + ",top=" + y;
     window.open(contentsURL, winName, args);
    }

It opens a popup window perfectly, but I am unable to change its size with the arguments in the html link:

linktext
I did a lot of trials, but fond no solution. Same for Chrome as Mozilla. Can you help?
Thank you in advance for your help