Fixed width/height for pop-up

How I can open one pop-up to a internal file with fixed width/height?

The Javascript to open using:
window.external.ShowPopup(Name, URL, Width, Height, Top, Left, Param);

Not working the Beta.

Using the common javascript this possible resize the window. :frowning:

Unfortunately window.external.ShowPopup was for the Trident engine. With Chromium, we don’t have the same ability to manage window properties from code.