Nicely broken redirection on oreilly.com: - While searching for interesting ebooks, I open each new title in a separate tab, - I then open a new tab to log in,

Nicely broken redirection on oreilly.com: - While searching for interesting ebooks, I open each new title in a separate tab, - I then open a new tab to log in, then "Reload All" other tabs... - ...and BAM, half the tabs are now displaying the same book. Quite embarrassing for a programming books publisher.