Http請求頭中X-Requested-With的含義

昨天看代碼的時候，看到了這個一句java String requestedWith = ((HttpServletRequest) request).getHeader("X-Requested-With");異步 X-Requested-With看到這個玩意並不知道是啥spa 因而查了一下.net if (request.getHeader("x-requested-with") != null

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