gin 设置跨域

c.Writer.Header().Set("Access-Control-Allow-Origin", "*") // 允许所有源访问
c.Writer.Header().Set("Access-Control-Allow-Origin", "https://www.jmwebseo.cn")
c.Writer.Header().Set("Access-Control-Allow-Origin", "http://localhost:8080")
c.Writer.Header().Set("Access-Control-Allow-Credentials", "true")
c.Writer.Header().Set("Access-Control-Allow-Headers", "Content-Type, Content-Length, Accept-Encoding, X-CSRF-Token, Authorization, accept, origin, Cache-Control, X-Requested-With")
c.Writer.Header().Set("Access-Control-Allow-Methods", "POST, OPTIONS, GET, PUT,DELETE ")