hi I found lot of useful answers how to force Facebook to post image when sharing link of my site on wall (f.e this one was really helpful Facebook Post Link Image)
but I'm trying to achive opposite thing => "when I post to fb wall enforce facebook not to pull any image"
the only solution that I came up with is setting all my open graph meta tags and set image tag to be blank
<meta content='' property='og:description'>
<meta content='' property='og:image'>
<meta content='MyTest app' property='og:site_name'>
<meta content='http://example.eu' property='og:url'>
<meta content='website' property='og:type'>
<meta content='10000123456789' property='fb:admins'>
<meta content='Movies and music' property='og:title'>
but in facebook url linter I'm getting
Object at URL 'http://example.eu/' of type 'website' is invalid because the given value '' for property 'og:image:url' could not be parsed as type 'url'.
so how to enforce facebook not to pull any img ?