It would be great if webkit could support the window.createPopup that exists in IE (since version 5.5). The benefit of the popup object is that it can appear on top of other frames and outside the browser window. This makes it easier to create contextmenues etc. You can also make the popup appear x px relative to a HTML node, see: http://207.46.199.254/en-us/library/ms536755(VS.85).aspx Examples can be seen here: http://207.46.199.254/en-us/library/ms533025(VS.85).aspx
My googling indicates that Firefox doesn't support this either.
correct links: http://msdn.microsoft.com/en-us/library/ms533025(VS.85).aspx http://msdn.microsoft.com/en-us/library/ms536755(VS.85).aspx http://www.w3schools.com/js/tryit.asp?filename=try_dom_window_popup
This is also tracked as Chromium bug: http://code.google.com/p/chromium/issues/detail?id=17394
window.createPopup() was Internet Explorer only and it was later removed from IE11 as well. https://docs.microsoft.com/en-us/previous-versions/windows/internet-explorer/ie-developer/dev-guides/bg182625(v=vs.85) I think we are not planning to add old APIs etc., so I think we can mark this as "RESOLVED WONTFIX" (similar to Chrome bug in Comment 03)
This is most certainly won't fix at this point.