Hi - I was not able to repro this issue. I tried liking the product and clicked on post to facebook without any message and it showed fb_ref parameter in my newsfeed and also in my timeline. I also tried only liking the product and not clicking on post to facebook and it worked as expected. You can check it here: (https://www.facebook.com/anoorin.alalani
). Can you please let us know your repro steps?
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