I would like to show https://startpage.com in an iframe. When doing so, I get the following error:
Refused to frame 'https://www.startpage.com/' because an ancestor violates the following Content Security Policy directive: "frame-ancestors 'self'".
Google.com also send same-origin by default, but according to How to show google.com in an iframe?, there are ways to circumvent that.
Is something similar possible for StartPage?