Urgent! help needed - Error 403 Forbidden


#1

Hi,

I am trying to use the search api to get twitter results about a query. The sample url is like:
https://search.twitter.com/search.json?q=obama&result_type=mixed&rpp=1&callback=cb

However, I am getting following error:
Error 403 Forbidden
Forbidden
Guru Meditation:
XID: 304458630
Varnish

If the parameter does not include callback=cb, then I am able to get response.
Is my IP blacklisted?
What did I do wrong?

Thanks,
Meng