[Forrest]

I tested macworld.com by clicking the heading of the main article. When I did so, I got a popup window. However, that was because of my ad blocking prefs. When I changed them to "never" allow popup windows, it did not come up.

When it did come up, the window was blank. A quick guess is that the URL they're using is so long and complicated with multiple addresses in it, that OW chokes on it.