API page displayed abnormally and said "Can't read from server. It may not have the appropriate access-control-origin settings."

URL: http://hk1.imlc.me/app-runner-home/docs/api.html#/Application
Seems it's a CORS problem? Where can I configure the domain name I used?
I only used the sample config file and export M2_HOME in my profile.
Hope for your advice