rack-rewrite with Rails 3.2.3 on Heroku
heroku, middleware, rack, rack-middleware, ruby-on-rails
Solution
If you use threadsafe! enabled in production, there is no Rack::Lock... so instead:
config.middleware.insert_before(Rack::Runtime, Rack::Rewrite) do
#your coolness here
end
Problem
I'm trying to set up rack-rewrite for a Rails 3.2.3 on Heroku cedar stack and everywhere I look it says to add something like: ``` config.middleware.insert_before(Rack::Lock, Rack::Rewrite) do # rewrite rules end ``` But trying to run this on Heroku gives me the error: ``` `assert_index': No such middleware to insert before: Rack::Lock (RuntimeError) ``` and indeed running "heroku rake middleware" doesn't show Rack::Lock on the list while in development Rack::Lock is there. First question is why Rack::Lock is not present on Heroku, is that correct? Second question, if not before Rack::Lock, where should I insert Rack::Rewrite? Thanks!