@DatNguyem
Good Idea. This is what it says. I retracted the URL. Let me know if it's helpful
Refused to display '[URL Retracted]/CMSModules/PortalEngine/UI/Webparts/WebPartProperties.aspx?nodeid=10346&aliaspath=/Demo-Fabian&culture=en-US&webpartid=content2&instanceguid=f5d16e51-dd9a-425e-8310-75c2ddc894db&zoneid=ZoneA&templateid=25956&zonevariantid=0&variantid=0' in a frame because it set 'X-Frame-Options' to 'sameorigin'.
GetResource.ashx?scriptmodule=/CMS/AdvancedPopupHandler.js:1 Uncaught DOMException: Blocked a frame with origin "[URL Retracted]" from accessing a cross-origin frame.
at u ([URL Retracted]/CMSPages/GetResource.ashx?scriptmodule=/CMS/AdvancedPopupHandler.js:1:6285)
at Object.f [as stopPropagation] ([URL Retracted]/CMSPages/GetResource.ashx?scriptmodule=/CMS/AdvancedPopupHandler.js:1:6320)
at HTMLIFrameElement.