postback operative asp.net routing (validation viewstate mac failed)
i'm controlling asp.net 3.5 sp1 system.web.routing model webforms, described all works fine , i have tradition seo urls even postback works. but there box where postback always fails i a: validation viewstate mac failed. concentration hosted web camp cluster, pledge settlement specifies same validationkey validation algorithm. autogenerate can't used cluster. here unfolding imitate error: create customary webform mypage.aspx button create lane maps "a/b/{id}" "~/mypage.aspx" when govern site, navigate page works. nonetheless press symbol error. blunder doen't occur lane only "a/{id}". it seems associated array sub-paths url. there during slightest 2 sub-paths viewstate validation fails. you blunder even enableviewstatemac="false". any ideas? bug? thanks