Problem with preview in Cornerstone

I’ve switched my website from a single site to a multisite setup.
All is working fine except the cornerstone preview.
It shows this error:
The preview could not load due to a http/https mismatch. Please check that HTTPS is properly configured on your site.
Origin URL:
Preview URL:

I’m working in https protocol.
Maybe the multisite is forcing the https protocol while in the latest preview I’ve worked in http.
What should I do?

Thanks in advance

Hi there,

Please check the settings of the URL that is in Settings > General and make sure that both of the URLs match the same protocol.

Let us know it goes.

Yes, they match.

Hey Francesco,

This is most probably an issue with your HTTPS setup. If all of your backend or WordPress Admin is loaded in HTTPS, the builder should work too.

Please follow the HTTPS related suggestions in our Builder Troubleshooting guide at You might need help from your hosting provider for this.


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