FYI I don't know why but it doesn't seem to work on Firefox. I can't look at it right now, but at first glance it looks like either the requests to "campaigns/

FYI I don't know why but it doesn't seem to work on Firefox. I can't look at it right now, but at first glance it looks like either the requests to "campaigns/search" fail / return empty or that they are discarded because you're not doing a preventDefault on form's submit. It's weird because it does work on Chrome-based browsers.