两次一模一样的请求，返回值却不一样，请问一下官方，这是为什么。

第一次 （2021-04-19 23:44:28）

{"requestdomain":["api.a.com"],"wsrequestdomain":["socket.a.com"],"uploaddomain":["api.a.com"],"downloaddomain":["img.a.com"],"action":"set"}

{"errcode":0,"errmsg":"ok","requestdomain":["https:\/\/api.a.com"],"wsrequestdomain":[],"uploaddomain":["https:\/\/api.a.com"],"downloaddomain":[],"invalid_requestdomain":[],"invalid_wsrequestdomain":["wss:\/\/socket.a.com"],"invalid_uploaddomain":[],"invalid_downloaddomain":["https:\/\/img.a.com"]}

第二次（2021-04-20 01:26:04）

{"requestdomain":["api.a.com"],"wsrequestdomain":["socket.a.com"],"uploaddomain":["api.a.com"],"downloaddomain":["img.a.com"],"action":"set"}

{"errcode":0,"errmsg":"ok","requestdomain":["https:\/\/api.a.com"],"wsrequestdomain":["wss:\/\/socket.a.com"],"uploaddomain":["https:\/\/api.a.com"],"downloaddomain":["https:\/\/img.a.com"],"invalid_requestdomain":[],"invalid_wsrequestdomain":[],"invalid_uploaddomain":[],"invalid_downloaddomain":[]}