Blank page when the demo is displayed from the ThemeForest frame

Hello there, as the title says I have a probelm with the visualiuzation of a demo of a theme of mine. If you reach the demo directly from the url, all works fine, but if you see it from the ThemeForest preview iframe then the checkout page display just a blank page.

I already tryed to enable wp_debug but nothign is displayed, there is only this issue in the js console:

Refused to display '' in a frame because it set 'X-Frame-Options' to 'SAMEORIGIN'.

I have searched for it but I didn’t find anything helpful.

Some have any idea about the cause or have experienced this before?

Your demo hosting is not allowing it to load in an iframe.

Where are you hosting the demo? Your provider may be able to help but usually this is controlled by a file outside of your access

Thank you so much for you reply. I use Sitegroung, I’ll send them a message. Anyway the strange thing is that this happens only with the checkout page of WooCommerce :confused: