Place magazine in bloc

Hi, everyone.
I am integrating a virtual magazine to a web page that is en bloc. The magazine is on a website and I have an iframe that generates to put the magazine on the page, but when you put the code in bloc app, it is not displayed.

Someone would have some idea of ​​how to solve or make it look, this iframe that generates:

iframe style = “width: 100%; height: 552px;” src = “//” frameborder = “0” allowfullscreen> </ iframe

I am not sure but as I remember this will only be displayed after the export of the page. If after the export of the page this is still not displayed, do you have a link of the page?