首页Response to preflight request doesn't pass access control check: Redirect is not allowed for a preflight request

Response to preflight request doesn't pass access control check: Redirect is not allowed for a preflight request

时间: 2023-11-06 09:53:51 浏览: 172

完美解决axios跨域请求出错的问题

错误信息： Response to preflight request doesn’t pass access control check: No ‘Access-Control-Allow-Origin’ header is present on the requested resource. Origin ‘http://localhost:9000’ is therefore not allowed access. The response had HTTP status code 403 随着前端框架的发展，如今前后端数据分离已经成了趋势，也就是说，前端只需要用ajax请求后端的数据合

当浏览器发起跨域请求时，会先发送一个预检请求（OPTIONS请求），以确定服务器是否允许实际的请求。在预检请求的响应中，如果出现重定向，浏览器会认为跨域请求不通过，并报错"Response to preflight request doesn't pass access control check: Redirect is not allowed for a preflight request"。这是因为根据CORS（跨域资源共享）规范，预检请求不允许进行重定向。

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