Review Request API

[Maia Materman]

I was trying to use the API to get requests from a certain user, and I was hoping everyone here could help me! My goal was to use the url "api/review-requests/?from-user=" and fill in a username, but when I try use it in my code, I keep getting responses that have "total results" equal to 0. To make things more confusing, when I use the same url and calls in the browser, I get a valid result in the form of a downloaded xml. I can also get the whole list of requests when I don't include the query parameters, both in the code and on the browser. Could anyone offer some advice as far as what I should do? 

Thanks!