Hi Peter,
Got the same issue with Elementor and Security Headers. I found this solution on Elementor’s website, that worked for me :
https://elementor.com/help/cant-edit-with-elementor/#grayendless
“The gray page can be also due to?X frame restrictions?and?Cross-origin?issues. You can see if it is the issue by checking the error messages of your browser console (to do it, click right on your mouse, select “inspect” and then “console”. Error messages are written in red). In this case, you will have to change?the X-Frame-Options from DENY to SAMEORIGIN. This has to be solved by your hosting company.”
