"this" link does not work.
I've seen a lot of broken links from posts that predate the current GeoNet forums.
Hi Yiman and Stan,
Please check out to the following threads, I believe that these are the ones John was referring to.
Access Control Allow Origin:
1. https://community.esri.com/thread/53724#post208466
2. https://community.esri.com/thread/53374#post207055
Thanks and hope this helps!
-Marla