showModalDialog unable to pass a string

[FancyPrairie]

I can not get the showModalDialog to pass a string for me. That is, the page that is opened, does not receive the string.

My code looks something like this:

window.showModalDialog "mywebpage","mystring","features"

Via the window_onload event of "mywebpage" I check dialogArguments. But it's always empty. However, if, instead of passing "mystring", I pass a number then dialogArguments contains the number.

Why am I unable to pass a string?

 

[tsuji]

Exactly the same. It is the other following(?) script lines in the dialog which may cause the dialog to error out... and create the illusion of it not being passed