My host EUKHOST use softaculous for offering easy installing of WordPress site
I post Sketchfab links on my blog and they have worked fine for weeks, but now I get error's -
"It looks like you're blocking some scripts or cookies necessary to properly display the viewer."
To prove the same happens on completely vanilla install of WordPress I installed another default version on same hosting package & got the same problem:
This is not related to my browsers and I've tried on multiple machines across 4 browsers.
EUKHOST are saying there are no logs of errors their side
The errors in Dev mode on Chrome state:
"DOMException: Failed to read the 'cookie' property from 'Document': The document is sandboxed and lacks the 'allow-same-origin' flag."
I created a sandboxed version of Wordpress using another site and all is fine.
IP: --
Can't embed Sketchfab links in Softaculous WordPress build
The WordPress installation done by Softaculous is exactly same as the default version of WordPress. We do not make any changes that would restrict such usage.
You can try installing a WordPress installation manually and you will face the same issue.
It seems to be an issue with your hosting environment.