I get the feeling that Google has a new policy to NOT support IE9/8/7, like with their Chrome experiments ( http://news.ycombinator.com/item?id=2812503 ). Check the BrowserLab results: http://i.imgur.com/S6dQP.png I would say that there are two options: * They don't test their site in IE9 (nor 8/7/6) or they don't know/care. * They are actively doing this.. And I cannot believe the first..
1) http://developers.google.com/ is an internal server error.
2) I don't trust BrowserLab as not a single one of the browsers showed me https://developers.google.com/+/