golang Unmarshal 小問題

正常狀況：
func main() {

	str := `{"expires_in":2592000,"refresh_token":"22.84564433384c3dffdf8c2b123b6da8de.315360000.1756090115.2605827041-6701125","access_token":"21.060aaae1049e2604d0fa71d992aea516.2592000.1443322115.2605827041-6701125","session_secret":"6ce3910403a953006916f1fafef433c5","session_key":"9mnRdL3CfpvaeMqn4g2A4f1b+olbN4iD079GhsDIumsoSy9AYZgVtDs2XO5FsHMys+AxZtyqVtQSjkSZtilJd1UAsAoNxI9esg==","scope ":"basic"}`
	var m map[string]interface{}
	json.Unmarshal([]byte(str), &m)
	fmt.Println(m)
}
==============================================================
控制檯打印：
    map[session_secret:6ce3910403a953006916f1fafef433c5 session_key:9mnRdL3CfpvaeMqn4g2A4f1b+olbN4iD079GhsDIumsoSy9AYZgVtDs2XO5FsHMys+AxZtyqVtQSjkSZtilJd1UAsAoNxI9esg==
scope :basic expires_in:2.592e+06 r
efresh_token:22.84564433384c3dffdf8c2b123b6da8de.315360000.1756090115.2605827041-6701125 access_token:21.060aaae1049e2604d0fa71d992aea516.2592000.1443322115.2605827041-6701125]

json串有換行

func main() {

	str := `{"expires_in":2592000,"refresh_token":"22.18aba8ebd4838130f9506f35f93a3ca2.315360000.1756092980.2605827041-6701125","access_token":"21.27
4921d56f67b0a2e2bf988bd695fbe7.2592000.1443324980.2605827041-6701125","session_secret":"21376476ea4eac56c3382883796615a8","session_key":"9mnRdvXn5BQJ3
wGCnC\/UBA7DUyVivKDymYcPkNnFkrqS0n7OjAhiTGeKjAlDLSLs7h\/\/CibfnC8VZFJd+u8SZ02fpvHxlBPa7w==","scope":"basic"}`
	var m map[string]interface{}
	json.Unmarshal([]byte(str), &m)
	fmt.Println(m)
}

=====================================================
控制檯打印：
map[]

疑惑：json串來自第三方平臺反饋 ，我手動將帶有換行的json串調好格式能夠解析，在撤銷修改不能解析，可是在手動改好的串中手動製造換行卻仍然能夠解析