The properties of the link are not specified in the button. In case you would have to use the Js dialog ui.feed that will be able to specify the sharing information explicitly, but the ideal ai is neither uifeed nor share button, just implement a like.. Like button.. And put properties to be recommend (not a product??) and enable share. Will appear both. Now as for the image you will have to implement the open Graph .
With open Graph shares through the link, it and property a URL, if the comrade has a page of A product is what he has to do even. But he’ll have to implement the whole thing. If it’s an application it can do a posting dialog, in this case fb.ui or fb.feed do not know.There used to specify image title and sub description of a post. He can direct to the app, and he can load a variable, he could also put an action button on the post made, and this button returned the variable. Today the link should have details and it will be a rich product type object.
learn only, read the documentation
How are you doing? Post the code
– Lucas
And yet, without the image.
– dsantoro
Do you have meta tags? http://davidwalsh.name/facebook-meta-tags Then test here: https://developers.facebook.com/tools/debug
– Lucas