Ouch. Check this out.
http://news.bbc.co.uk/1/hi/world/asia-pacific/4605202.stm
http://news.bbc.co.uk/2/hi/world/asia-pacific/4605202.stm
Same document. Same content. Just different layout in the navbar. This is a bad way to do A/B testing. They need to do this based on cookies!
It’s always amazing to find these little edge conditions. I’ve been writing robots/spiders for years and it never ceases to amaze me how much crazy stuff people will put into production.
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January 13, 2006 at 1:01 pm
Kevin,
AFAIK, the Beeb has done this since time immemorial - it is not new.
January 13, 2006 at 1:22 pm
Thanks Matthew. You learn something new everyday. I guess I’ll have to write a custom URL canonicalizer for them. There are a few other mainstream sites I’ve had to do this with as well.
Kevin
January 16, 2006 at 12:56 am
What is so bad with two URLs identifying one resource?
January 16, 2006 at 2:13 am
Doing it with cookies would also mean that the non-cookie’d person could ever see the other format, that’s not exactly a good thing.