Facebook One Box Error

Facebook One Box Error on Latest 2.7.0.beta1 version.

ErrorUtils caught an error:

Failed to set the ‘domain’ property on ‘Document’: Assignment is forbidden for sandboxed iframes. [Caught in: Module “lowerDomain”]

Subsequent non-fatal errors won’t be logged; see https://fburl.com/debugjs.

Same error show when I do F12 on following post.

Can you provide an example?

This error is coming from Facebook API because we are loading the video in a sandbox iframe for security reasons.

As I can see here the video works fine even with the error from Facebook so it’s not blocking the feature? The alternate here would be to not onebox the video at all which seems even worse.


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