Response to preflight request doesn‘t pass access control check: No ‘Access-Control-Allow-Origin‘ he
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出现
Access to XMLHttpRequest at 'http://localhost:8201/admin/hosp/hospitalSet/3/0' from origin 'http://localhost:9528' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource.
错误的原因是在写请求路径的时候出现了错误导致路径不能访问到,正确的处理方法是:
前端请求的路径要和后端写的路径一致才能访问到。
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