Website work only for my pc - Based iframes / object tag

I will try to make it simple. I build a tool that helps people to make their own dashboard. http://webager.net/

In the first version, the client gave a full URL and I turned it into a screen (Based on iframe tag + "x-frame-bypass" script from Github).

After I uploaded the website (AWS, S3, Route53) it worked only for my pc and another pc at my home.

Then I changed the <iframe> tag to <object> tag and it worked for me well without the external script. Still, the same result. It worked also with big websites like twitter and youtube, but people see an only blank screen.

X-frame-options - just wasn't relevant.

It should be looking like this: https://i.imagesup.co/images2/da718cf6a68f2dadc93eed4bbe21a25627939bad.png

** I uploaded the website yesterday.

Thank you very much! Thank you very much !