Provisional headers are shown

It was caused by Google’s plug-in interception, so I changed to a Google browser without a plug-in, and found that everything was normal. This kind of header exception can be ignored because the request data can be returned normally.

reference

https://blog.csdn.net/qq_20337865/article/details/81184285
https://blog.csdn.net/starsnow123/article/details/78675240