In SharePoint communication site please allow developer to add iframe from insecure website (http)
In SharePoint communication site please allow developer to add iframe from insecure website (http)

Thanks for your feedback! Although we appreciate your time and effort to give us this feedback, it’s not something we’re planning to do right now as that would be a security risk and normally all browsers would anyway block mixing both http and https. This is really not even something what we can control in the SharePoint side as it’s dependent on the browser settings.