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This method also uses token and validates it. Unlike the previous method, the token is not placed in the HTTP request as a parameter, but in a custom attribute in the HTTP header. Through the XMLHttpRequest class, you can add the HTTP header attribute csrftoken to all requests of this class at one time and put the token value into it. This solves the inconvenience of adding token to the request in the previous method. At the same time, the address requested through XMLHttpRequest will not be recorded in the address bar of the browser, and there is no need to worry that token will be leaked to other websites through the Referer.When the server provides some UDP-based services, such as DNS, SMTP, NTP, etc., and finds some requests, in which the Response message is larger than the Request message, the Attacker sends a Request message that forges the source IP, and the source IP forges the IP address of the victim. After receiving the Request message, the server replies the "enlarged" Response message to the victim, thus realizing the amplification of traffic. The principle is roughly as follows:The verification code forces the user to interact with the application to complete the final request. Under normal circumstances, CAPTCHA can well contain CSRF attacks.You can see that this video should be on the 22nd of the twelfth month of the lunar calendar. When the 23rd year comes, UP takes this opportunity to pay tribute to all audience friends in advance.Dioscorea cirrhosa root slice维尔弗兰奇是一个小镇，在一片神秘的森林边缘没有电话接收。居民人数在减少，但犯罪率却急剧上升。警察探长劳尔_ne，曾经是一宗犯罪的受害者，她不断地发现新的尸体。