Tumblr sharer URL override

Question

Tumblr has a sharer just like Facebook and Twitter, Tumblr's is: http://www.tumblr.com/share/. I believe that Tumblr's works by looking at the referring URL and uses that.

I cannot seem to find any documentation to override that. I want to pass in an additional key into the URL that is sent by default. Any ideas how to do this?

Answer 1

The URL format is as follows:

http://tumblr.com/share?s=&v=3&t=[Title]&u=[uri encoded URL]

This will pre-populate the share form with the chosen title and url. As noted the URL, or value of u= must be URI encoded to work properly.