Bad Request error - mobile site

[DrDoofenshmirtz]

I get this on Dolphin browser and the built in browser on my mobile:

Bad Request
Your browser sent a request that this server could not understand.
Size of the request header field exceeds server limit.
Cookie
/n

Any ideas?

[marshalla]

Clear your cookies. There's a long standing bug whereby PH sets more and more of them.

[DrDoofenshmirtz]

That fixed it - thanks.