Fix #34349 By the way, remove `(ctx *APIContext) HasAPIError() ` and `(ctx *APIContext) GetErrMsg()` because they do nothing, the error handling has been done in API's middeware The existing OAuth2 tests were not quite right, refactored them together
Resolves #34618. --------- Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com> Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>