Installation Payment Issues
Frame-ancestors ‘self’- Error
If during the setup wizard, the payment screen fails to load, this is due to a Salesforce default setting. It will look something like this where there is an error icon in the credit card field and the page loader continues to spin.
This is due to a Refused to frame [domain—textany.vf.force.com] because an ancestor violates the following Content Security Policy directive: “frame-ancestors ‘self” issue.
To fix this. In Salesforce go to Setup —> Session Settings and uncheck these two boxes. This will allow the encrypted payment link to show up in the wizard. After setup, reenable these two settings. This issue was sometimes present in earlier releases and can vary by browser type and browser policies.