新增获取所有插件信息的API接口

util/socket.go

@@ -68,13 +68,14 @@ func CORS(next http.HandlerFunc) http.HandlerFunc {
 		header := w.Header()
 		header.Set("Access-Control-Allow-Credentials", "true")
 		header.Set("Cross-Origin-Resource-Policy", "cross-origin")
+		header.Set("Access-Control-Allow-Headers", "Content-Type,Access-Token")
 		origin := r.Header["Origin"]
 		if len(origin) == 0 {
 			header.Set("Access-Control-Allow-Origin", "*")
 		} else {
 			header.Set("Access-Control-Allow-Origin", origin[0])
 		}
-		if next != nil {
+		if next != nil && r.Method != "OPTIONS" {
 			next.ServeHTTP(w, r)
 		}
 	})