This seems to be basic but I\'m a Ruby/Rails beginner. I need to simply return HTTP 204 in a controller. Would
respond_to do |format| format.html end
head :no_content
Tested with Rails 3.2.x, 4.x. It causes the controller method to respond with the 204 No Content HTTP status code.
An example of using this inside a controller method named foobar:
foobar
def foobar head :no_content end