Set Facebook App ID as optional · Issue #4 · robsonvleite/optimizer
Not always when we are developing a website it has an App ID and even in production can happen not to have. So I suggest you leave fb: app_id receive null value, so we do not have to leave a random...
Not always when we are developing a website it has an App ID and even in
production can happen not to have. So I suggest you leave fb: app_id receive
null ...