Hey Chris (and everyone else) - Have you played around much with Turbolinks 3 partial replacement? (Chris, I wathed your livecoding segment; was great, thanks.) I'm using it with Rails , and it's working pretty well. My problem is that I can't seem to pick up the partial replacement in my feature tests (using Rspec/capybara/poltergeist). In other words, in my test, I'll visit the page, simulate the event (email entered and button click), and expect the resulting page to include the text from the partial replacement. But the text isn't showing up on the test page. I have js turned on. I couldn't afford to spend a ton of time trying to figure it out, so maybe I missed something. If anyone has any experience with this (., you have or have not gotten tests to work for turbolinks 3 partial-replacement), I'd be interested to hear.