I have a main page that has a link on it that opens a subpage which opens up as a popup window via onClick=window.showModalDialog. The subpage comes up and a button is on the page to export the data in the grid on the subpage. However, when the button is pushed, the "do you want to open or save" dialog box never comes up. THe same exact code works completely fine in a non modal dialog page.

Any advice?