框架中的劫持问题/Hijacking in the go-rod

[lingyao2333]

router.MustAdd("/*", func(ctx *rod.Hijack) {
//开始设置标头
r := ctx.Request.SetContext(browser.GetContext())
rest := ctx.Request.Headers()
//设置body
STime := []SearchTime{{Start: "20210923", End: "20210924"}}
SearchFiltertr, err := json.Marshal(SearchFilter{D: STime})
if err != nil {
fmt.Println(err)
}
body := SearchCondition{Count: true, Filter: string(SearchFiltertr)}
fmt.Println("json")
bodystr, err := json.Marshal(body)
if err != nil {
fmt.Println(err)
}
fmt.Println(string(bodystr))
fmt.Println(r.Body())

	r.SetBody(body)
	ctx.Request.SetBody(body)

	ctx.MustLoadResponse()
	//t := &http.Transport{ForceAttemptHTTP2: true}
	//client := &http.Client{Transport: t}
	//ctx.LoadResponse(client, true)

	fmt.Println("ResponseCode: ")
	fmt.Println(ctx.Response.Payload().ResponseCode)

	resp := ctx.Response.Headers()

	fmt.Println("resp: ")
	fmt.Println(resp)
	respbody := ctx.Response.Body()
	fmt.Println("respbody")
	fmt.Println(respbody)

})

代码如上。此处运行时，在不修改任何数据的情况下。所有流程能走通。并且能获取到对应的request.body和response.body和对应的header。
但是一旦我设置了request.body。服务器返回的值则直接是错误。但是此处我打印过正常请求的格式和自行生成的格式，是一致的。所以想请问下怎么对request.body的修改
Code as above. Run here without modifying any data. All processes can go through. Body and Response. body and the corresponding header can be obtained.
But once I set request.body. The value returned by the server is an error. But here I printed the format of the normal request and the generated format is the same. So I would like to ask how to modify request.body

[rod-robot]

Please add a valid **Rod Version:** v0.0.0 to your issue. Current version is v0.101.8
_{generated by check-issue}

[lingyao2333]

go-rod版本为 v0.101.8

My go-rod version is v0.101.8

[ysmood]

#322