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一条ajax报错，请问谁遇到过呢？

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一条ajax报错，请问谁遇到过呢？

一个普通的请求，返回这个信息，愚弟初步觉得是预请求不过造成的，可能是跨域的问题，但不确定，有没有老哥，知道具体啥原因
{"Message":"The requested resource does not support http method 'OPTIONS'."}


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就是跨域，简单点就后端过滤掉 OPTIONS 请求


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