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Hi,
where can i configure/set a standard image for opengraph, when an article has no image?
Example for Facebook: https://developers.facebook.com/tools/debug/og/object/
With this page: http://geislingen.net/wiki/Netzwerk_...hes_Engagement
No preview image...
Edit the article and make a selection for the article's Icon Image that is either a wiki attachment or an external image URL (the font-based icon can't be used for og:image).
I'm considering falling back to the site's logo when an article Icon is not explicitly set.