Using Experience Builder on Enterprise behind proxy can not save the experience.
After click on save button I can see the message "Saving error".
Via developer tools are generating errors shows in attachment.
I am litle bit suprlise that url in errors starting with https://https://www.arcgis.com/... although my portal an running experience has an URL https://app.lesy.sk/enterprie/.....
This error appears only if I use non public webmap.
Web Application Builder works correctly.
Installed portal: 10.9.1 with federated server
Used client: Microsoft Edge, ver. 100.0.1185.39 or Google Chrome ver. 97.0.4692.71
