Looks like you edit this post to remove your question, so I'm guessing you solved it. For anyone else coming along searching for the same thing, though, here's an answer:
The plugin processes requests as regular strings, so it can handle a URL with parameters in the query string just as easily as any other URL. An Example:
Request URL - /items/camera/1/?tab=reviews
Destination - http://somesite.com/items/camera/1/
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