Multiple instances of script.google.com refused to connect.

[Stephen Hind]

We're seeing a number of scripts that just show script.google.com refused to connect.

This is not only on script that are for the public from us and scripts our customers have that belong to them.

Is anyone else seeing this?

[Stephen Hind]

After further investigation it looks like Google has made an internal change so that Apps Script Web Apps embedded in an iframe on a non-Google domain will not longer function and in the console you see "Refused to display 'https://script.google.com/' in a frame because it set 'X-Frame-Options' to 'sameorigin'."
If you embed on a Google Site that uses the sites.google.com published URL then the script displays, but not on a custom URL using your own domain,

[Eric Smith]

I am seeing the same issue. Embedded scripts work when accessing a Google site via https://sites.google.com/view/... but are broken when accessing via a custom domain. This issue was introduced sometime after 5 AM EDT -- I was able to see forms this morning.

[Stephen Hind]

I've raised an issue with Google Cloud Support as we're a Google Workspace customer, so we'll see what that brings.

[Eric Smith]

The scripts on my site are working again! 

[Stephen Hind]

I'm seeing the same: I'm glad it was only a transient issue.