I was thinking of this. It's not a great experience, but it might be the only pure browser based options that will work. Along those lines I thought: Person A

I was thinking of this. It's not a great experience, but it might be the only pure browser based options that will work. Along those lines I thought: Person A clicks reshare. Gets asked for url. Person A types in persona.com. Immediately a window pops up which is persona.com/reshare?s=personb&id=4 or something along those lines. This is similar to what happens if you click retweet or fav on an embedded tweet right now. I'm actually ok with this workflow even if it's clunky (you have to click reshare twice to do a reshare). I just wish there was a better way to tell personb.com to automatically recognise that persona.com is associated with resharing.