Golang Unmarshal Small problem

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Normal condition: 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)}============================================================== console print:     map[ session_secret:6ce3910403a953006916f1fafef433c5 session_key:9mnrdl3cfpvaemqn4g2a4f1b+ Olbn4id079ghsdiumsosy9ayzgvtds2xo5fshmys+axztyqvtqsjksztiljd1uasaonxi9esg==scope :basic expires_in : 2.592e+06 refresh_token:22.84564433384c3dffdf8c2b123b6da8de.315360000.1756090115.2605827041-6701125  access_token:21.060aaae1049e2604d0fa71d992aea516.2592000.1443322115.2605827041-6701125] 

JSON string has newline func main () {str: = ' {' expires_in ': 2592000, ' refresh_token ': ' 22.18aba8ebd4838130f9506f35f93a3ca2.315360000.1756092980.2605827041-6701125 "," Access_token ":" 21.274921d56f67b0a2e2bf988bd695fbe7.2592000.1443324980.2605827041-6701125 "," Session_secret ":" 21376476ea4eac56c3382883796615a8 "," Session_key ":" 9mnrdvxn5bqj3wgcnc\/ uba7duyvivkdymycpknnfkrqs0n7ojahitgekjaldlsls7h\/\/cibfnc8vzfjd+u8sz02fpvhxlbpa7w== "," Scope ":" Basic "} ' var m map[ String]interface{}json. Unmarshal ([]byte (str), &m) fmt. Println (m)}===================================================== console printed: map[]

Doubts: JSON string from the third-party platform feedback, I manually will have wrapped JSON string format can be resolved, the undo changes cannot be resolved, but in a manually modified string manually made line break can still be resolved