Rails emits warning: “Rack::File headers parameter replaces cache_control after Rack 1.5”

Question

I\'ve recently upgraded my Rails to v3.2. The server starts and works, however I\'m noticing the following warning:

Rack::File headers parameter replaces cache_         


        

Answer 1

The warning is caused by a call from within Rails itself. The warning has been fixed in Rails 3.2.13.