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Jonathan Wolff 7Jonathan Wolff 7 

What do I have to change before CORS update

Hello, my chefs wants me to inform myself about the steps we need to make befor the CORS release update.
I already looked if we have some URL under setup->CORS, but it was not the case.
Do I have to add every link that I have in salesforce to a page outside?

We use the sales cloud and never had any CORS problem so I am not sure about any needed changes to our org :D 

SwethaSwetha (Salesforce Developers) 
HI Jonathan,

Recommend you to try the steps in to determine the impact
  • Log in to your organization. Navigate to the Event Log File Browser( application and click Production Login.
  • Select the CorsViolation event type for your search.
  • Click Apply.
  • If the resulting count is 0, then your organization isn’t affected by this release update.
  • If the resulting count is not 0, then your organization is affected by the update. To return the domains that are affected by the update, select the CORS Violation Record and click Apply. This will return the domains that are impacted by the update.

Hope this helps you. Please mark this answer as best so that others facing the same issue will find this information useful. Thank you
Jonathan Wolff 7Jonathan Wolff 7
Hi Swetha,

I tried getting into , but after login into production I do get this error:
User-added image

Do you know how to fix it?
SwethaSwetha (Salesforce Developers) 
Can you double-check if you are entering the right credentials for the production org?
Jonathan Wolff 7Jonathan Wolff 7
Hi Swetha, how can I check if the credentials are right? The password is right, otherwise I would not get into this page. But independently if I log in with prod or sandbox I do get this error