DELETE method becoming OPTIONS @ Heroku

[scanferla]

Hi,

First of all, thanks for this gem. It is working perfectly except that when I try to delete from AngularJS (I'm using ng-token-auth, Restangular and rails-api) my request is sent as DELETE but Heroku console shows it as OPTIONS.
Chrome says net::ERR_EMPTY_RESPONSE.

AngularJS and Rails are using different domains and the only thing that doesn't work is delete.

It works 100% (including delete) in development mode (localhost:3000 and 0.0.0.0:5000).

I've seen many resources talking about "preflight", etc, etc but nothing has worked for me so far. I don't know how to handle this options method and haven't found any answers on the web.

Thanks in advance!

[scanferla]

I guess I haven't tried this one: I've moved all rack-cors config from config/application.rb to config.ru.

require 'rack/cors'
use Rack::Cors do
    allow do
        origins '*'
        resource '*',
        :headers => :any,
        :expose  => ['access-token', 'expiry', 'token-type', 'uid', 'client'],
        :methods => [:get, :post, :options, :delete, :put]
    end
end

Source: https://stackoverflow.com/questions/18538549/cant-get-rack-cors-working-in-rails-application/20464939#20464939

It fixed my problem on Heroku.

Thanks anyway for this great gem and I apologize for any inconvenience. I hope this issue can help someone in the future.

[scanferla]

@lynndylanhurley strangely it only fixed it for a few days, now it's not working again (as described in my first post). And I haven't changed anything in my code.

edit: WEBrick seems to receive DELETE instead of OPTIONS most of the time (but not all). Unicorn stopped working completely.
edit 2: Doing a POST request (creating something) right before trying to delete seems to improve the odds of a successful DELETE instead of OPTIONS.

[lynndylanhurley]

Hi @scanferla - this is normal behavior for cross-domain requests. It's called a pre-flight request. Thanks for posting the solution!