Safari doesn't load redirect page

Hi everybody,

I have an activation mail for subscribers.
It contains a link like :

http://oneSite/do/something?param=yeah&url=https%3a%2f%2fanotherSite/do/somethin g/else%3fparam1=tata%26param2=titi&trolollo=true

On ipad using safari (and only there) clicking it does the redirection (I can see the correct url on the new tab) but doesn't load the page. It stays blank.

It also appens on ipad simulator.
However using "open in a new tab" or pasting it in url bar works well they're not really userfriendly behaviors.

Has anyone an idea about a workaround ?