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来源:雅诚德英语网
HTTP requests are expensive so making an HTTP request and getting a useless response (i.e. 404 Not Found) is totally unnecessary and will slow down the user experience without any benefit.
HTTP请求是昂贵的如此发出一个HTTP请求和获取无用的响应(即404找不到)是完全不必要的而且会降低没有任何利益的用户体验。