I have two SharePoint installations in the same domain.
Example:
Installation 1: subdomain.domain.com/sites/mySite
Installation 2: subdomain2.domain.com/sites/mySite2
Also, they share the users. I would like to read a list from Installation 1 in a Installation 2 web part.
I tried using JSOM with new SP.Context(siteUrl) and SP.RequestExecutor.js, but I got this error message:
Access to subdomain.domain.com/sites/mySite XMLHttpRequest at from origin has been blocked by CORS policy
