Google+ : Multiple +1 on same page, different content
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I've tried to find an answer to this (both in the dev docs and here), but with no luck.

The "+1 button" works fine on normal pages (where there's just the single +1). But I have a page with multiple entities (to use the terms of Drupal: A View displaying multiple nodes) where I'd like to add "share buttons". So far I've added Twitter and Facebook.
Twitter is the simplest as it just takes the string you give it..
Facebook takes an url, but you can specify your own url.
When I try to specify my own url for +1 I get this Error:

    Unsafe JavaScript attempt to access frame with URL http://one80.seasites.se/whats-up from frame with URL https://plusone.google.com/_/+1/hover?hl=sv&url=http%3A%2F%2Fone80.seasites.se%2Fwhats-up%2Fl%25C3%25B6rdag&t=1342724634133&source=widget&isSet=false&referer=http%3A%2F%2Fone80.seasites.se%2Fwhats-up&jsh=m%3B%2F_%2Fapps-static%2F_%2Fjs%2Fgapi%2F__features__%2Frt%3Dj%2Fver%3Dr4LFRxx-_oY.sv.%2Fsv%3D1%2Fam%3D!ZCfx2q5v6YmYvWjcTQ%2Fd%3D1%2Frs%3DAItRSTNI50TT3SY8R9klRLc_1sBJ5_Rp3g#id=I3_1342724634541&parent=http%3A%2F%2Fone80.seasites.se&rpctoken=619983104&_methods=mouseEvent%2CtrackingEvent%2ConVisibilityChanged%2C_onopen%2C_ready%2C_onclose%2CcloseOrHideThisBubble%2C_close%2C_open%2C_resizeMe%2C_renderstart. Domains, protocols and ports must match.
     rs=AItRSTOQ10u7fGwgD-LqzsOa-fsgdlhDCg:173
    ec.a.v rs=AItRSTOQ10u7fGwgD-LqzsOa-fsgdlhDCg:173
    xh rs=AItRSTOQ10u7fGwgD-LqzsOa-fsgdlhDCg:203
    q.get rs=AItRSTOQ10u7fGwgD-LqzsOa-fsgdlhDCg:211
    ec.w rs=AItRSTOQ10u7fGwgD-LqzsOa-fsgdlhDCg:173
    Rh rs=AItRSTOQ10u7fGwgD-LqzsOa-fsgdlhDCg:208
    q.w rs=AItRSTOQ10u7fGwgD-LqzsOa-fsgdlhDCg:220
    Rb rs=AItRSTOQ10u7fGwgD-LqzsOa-fsgdlhDCg:30
    Xg rs=AItRSTOQ10u7fGwgD-LqzsOa-fsgdlhDCg:187
   (anonymous function) rs=AItRSTOQ10u7fGwgD-LqzsOa-fsgdlhDCg:226

To explain why I want to use separate URL:
every node is something like an event, every node has it's own url (which contains an image and text/info). So when you click Like (for FB) it gets the title, info & image and includes it in the post (So it says "What's up - Gathering", instead of a generic "What's up" and no/the same image).
I'd like to accomplish the same with G+.

Is there a way to accomplish this for G+?? Have I missed something??
 
I guess one way to do this is by using an iframe for each of the nodes and pull in a special version of the "node page" with just the g+-button. But that's a pretty nasty hack (and not that fun to set up).

Any ideas are welcome!