JoyFreak
Well-known member
I don’t know why the validator throws that error without investigating it but I am using the same add-on and when I share my URLs on Facebook, the OG image is being displayed correctly. So if this is the case for you too, then I’d safely ignore the error in the validator.I belive the problem is the way xenforo manages attachments, may be facebook is validating the extension and detect that something like https://www.movilesdualsim.com/attachments/1-1-rascador-jpg.416968/ is not a valid URL