Routing error / Preflight request / OPTIONS

[sgwilym]

I'm using j-toker to update a user’s account details, and to handle auth throughout my JS app generally. It works fine for signing in and out, and updating other resources on the API, but when I try to update the user's account with j-toker's built in method for doing so the request fails.

Serverside, I get:
Started OPTIONS "/api/v1/auth" for 127.0.0.1 at 2015-07-27 17:46:37 +0200 ActionController::RoutingError (No route matches [OPTIONS] "/api/v1/auth"):

On the browser:
XMLHttpRequest cannot load http://0.0.0.0:3000/api/v1/auth. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://localhost:8080' is therefore not allowed access. The response had HTTP status code 404.

rack-cors is handling the OPTIONS request everywhere else , and doesn't complain about there being no matching routes. As j-toker seems to be doing it's job right for everything else, I feel like this may be something to do with devise_token_auth. Any ideas on how to handle this?

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Looking at the rails server console it doesn't look like the OPTIONS requests for other resources never even hit the router. I'm really stumped.

[sgwilym]

Found the issue. Rack Cors was allowing patch but not put. 😓