Sharer link with parameter in URL

I have a popup window with开发者_运维知识库 a Facebook custom share link.

http://www.facebook.com/sharer.php?u=<url to share>&t=<title of content>

How can I use a url u with a parameter like http://google.com/?q=bla? It looks like facebook always cut of the parameter.

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You should URL encode the parameters.

var facebook_url = 'http://www.facebook.com/sharer.php?'+
  'u='+encodeURIComponent('http://google.com/?q=bla')+
  '&t='+encodeURIComponent('Some Page Title');