Can a server check whether a request is coming from an iframe (Node.js)?

Question

1. I want my server to be able to check whether a request that came through came from within an iframe

2. If the request came from within an iframe, I want my server to be able to find the domain name of the parent of that iframe

Is any of the above possible and if yes how can I implement such a check in a Node.js/Express.js server?

Thank you in advance for any help

Answer 1

Just check the parent's url here:

request.headers.referer

If there is no iFrame, it will be undefined.