gin中jsonp的用法

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package main   import (    "github.com/gin-gonic/gin"    "net/http" )   func main() {    r := gin.Default()    r.GET("/jsonp", func(context *gin.Context) {       data := map[string]interface{}{          "foo": "bar",       }       context.JSONP(http.StatusOK, data)    })    r.Run() }