Why is Window.open()'s return type void?
var newWindow = window.open(...)
However, this does not work in the senario of GWT (I am using 1.5 I dont know about later versions),
Window window = Window.open("", "", "");
Throws me a compile time error that the open is a method with a return type as void.
Why should it be void ? What if i want to close my popup from the main Window ? how do I get its handle ?
I don't know exactly why GWT doesn't support what you're asking for but there is a ticket requesting multiple window support where a number of workarounds are discussed in some detail.