always got DENIED ACCESS while visit /fc/gt2

[crazysvn]

I'm running my own java funcaptcha program, in which used some of your codes or thoughts.
while visit /fc/gt2, most time I Igot "DENIED ACCESS", ocationally got correct json. when change ip, the rate of got correct json can be higher.
I remember I always got correct json about a month ago, now this. funcaptcha did significant change?
I compared the request through my java program and the request through chrome, the only difference is there is a data[blob] in headers of the request through chrome, which I can't figure out how to form. I checked your api.js and also didn't find the data[blob] in your codes of /fc/gt2 request.
any ideas?
thank you buddy.

[crazysvn]

ok. I fixed it, after reading the previous related threads.