My guess is that you probably have an error in the value of the parameter. Because of JSON encoding, these can sometimes be difficult to get right in the UI. It’s slightly easier in the SDK where you have encoding libraries available to you.
I have done this many times so I know it does work correctly. I’d recommend double checking how you escape things and maybe extracting a small code sample mocking the documents and the view queries to test for yourself. You could certainly point us at that code sample to ask for help if you’ve not found the problem.