GET and POST refers to HTTP commands. POST is to send the form data again to the new destination, GET discards the data, but continues to to the new destination.

• 服务器试图将您的表单重新定向。单击[是]继续，向新的目标重新提交表单单击[否]进入新的目标，但不发送表单。单击[取消]将取消发送该表单。