title: facebook like button like impression differ with different query string
body: <p>I had page with listing of atlest 25 deals. each deal will have a like button (fb:like) the url for each deal will be "www.xyz/deals/dealtitle("nice-dress-best-offer")?userId=xyz" like this</p>
  
  <p>In the above link "dealtitle" will differ for each deal and userid will differ for different users. If a like impression was happened for the above link for one userId, it is not counted for some other userId. If user is logedin to my website the url will be with "?userId=xyz" query string other wise "www.xyz/deals/dealtitle("nice-dress-best-offer")"</p>
  
  <p>If the 2 like impression was given on both links it has to show 2 people liked it, count has to show 2. But it is not doing like that, it is taking like two different urls. My website contains urlrewrited links. That deal title will not appear like a querystring but the userid will be...</p>
  
  <p>Can any one tell me how to eliminate userid for like button impression..</p>
  
  <p>Thanks in advance.</p>
  
  <p>can any one tell me how</p>