26 lines
749 B
Go
26 lines
749 B
Go
package middle
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import (
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"net/http"
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)
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// Cors 跨域中间件
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func Cors(next http.Handler) http.Handler {
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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// 设置CORS头
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w.Header().Set("Access-Control-Allow-Origin", "*")
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w.Header().Set("Access-Control-Allow-Credentials", "true")
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w.Header().Set("Access-Control-Allow-Headers", "Content-Type, Content-Length, Accept-Encoding, X-CSRF-Token, Authorization, accept, origin, Cache-Control, X-Requested-With")
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w.Header().Set("Access-Control-Allow-Methods", "POST, OPTIONS, GET, PUT, DELETE, PATCH")
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// 处理OPTIONS请求
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if r.Method == "OPTIONS" {
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w.WriteHeader(http.StatusNoContent) // 204
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return
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}
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// 处理正常请求
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next.ServeHTTP(w, r)
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})
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}
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