i got 305 use proxy message

this comes when server says that you need to use proxy server to access this type of resource or other message saying that requested can be fulfilled by using proxy
server.and user must proceed so that he can get the expected result
it is worth mentioning thing that RFC 2068 was not clear that 305 was intended to redirect a single request, and to be generated by origin servers only.
Not observing these limitations has significant security consequences.