Same here, withdraw LTC from polo 32h ago. Created ticket, now have to wait.
P.S. have the same txid: c938138d22d7fd626378637ef27c349e1e422bcceac2a0b38e23c7a887cc9a0e

Http request from browser.
Browsers have internal security rules and it is not possible to make cross domain request without access/approve from server-side.

Is it possible to enable cross domain requests in your server?
https://developer.mozilla.org/en-US/docs/Web/HTTP/Access_control_CORS#Access-Control-Allow-Origin
or at least enable jsonp support?
May be it is already implemented for logged in users...
unfortunately I hadn't found any docs describing this api.

firstly, there is 2x2650, so 1 2650 making around 380h/s.
secondly, as far as I know it is not profitable because of cost of MoBo, not CPU.
CPU mining is just an additional profit in case administration of GPU farms is not annoying enough for you)
Or in case you've bought top CPU for gaming but playing only few hours in day - you can partially return investments.