We are getting an html redirect to a page with a connection to Scorecard Research. The new page blocks out the original page request, and on Chromium, you can't go back.
It has been suggested (and this is an old compromise) that it is a virus of some kind.
I have installed Ad Block Plus on my browser, and the problem seemed to have gone away for the moment. I've looked over Fred's code, as well as the original HTML code and the only thing I can find is this Scorecard Research problem.
Rantburg.com regular Glenmore says that other sites have been affected as well, so I suspect it is on Scorecard Research to fix their code.
BTW, blocking Scorecard Research doesn't help. It is an HTML compromise.
Best I can do at the moment.