'RuntimeError in DeviseTokenAuth::OmniauthCallbacksController#omniauth_success' with omniauth-facebook

rails 5.0.3

gem 'devise'
gem 'devise_token_auth', :git => 'git://github.com/lynndylanhurley/devise_token_auth.git'
gem 'omniauth'
gem 'omniauth-facebook'

When I did "facebook login" with JS SDK(Client side flow), did callback below in "FB.login"

$.getJSON('/api/v1/auth/facebook/callback', function(json) {
console.log(json);
});

then I got below

'RuntimeError in DeviseTokenAuth::OmniauthCallbacksController#omniauth_success'

raised 'No resource_class found'

/devise_token_auth/omniauth_callbacks_controller.rb:109:in `resource_class'

Parameters:

{"provider"=>"facebook"}

Toggle session dump

_csrf_token: "B5dLxdaxxxxxxxxxxxxxxxxxxxxUkwxsdbV5ffLKUE2/9zStM="
flash: {"discard"=>[], "flashes"=>{"notice"=>"Signed in successfully."}}
omniauth.params: {"resource_class"=>"User"}
omniauth.state: "8ce127b72794xxxxxxxxxxxxxxxxxxxxec38501ed5d11baf"
session_id: "ca70xxxxxxxxxxxxxxxxxxxx0707d053"
warden.user.user.key: [[1], "$2a$11$fTN9xxxxxxxxxxxxxxQile"]

Toggle env dump

GATEWAY_INTERFACE: "CGI/1.1"
HTTP_ACCEPT: "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8"
HTTP_ACCEPT_ENCODING: "gzip, deflate, sdch, br"
HTTP_ACCEPT_LANGUAGE: "ja,en-US;q=0.8,en;q=0.6"
HTTP_CACHE_CONTROL: "max-age=0"
HTTP_VERSION: "HTTP/1.1"
ORIGINAL_SCRIPT_NAME: ""
REMOTE_ADDR: "::1"
REMOTE_HOST: "::1"
SERVER_NAME: "localhost"
SERVER_PROTOCOL: "HTTP/1.1"

Start by reproducing the Facebook JS SDK callback, then inspect devise_token_auth/omniauth_callbacks_controller.rb around line 109 and the shown omniauth parameters. Confirm how the callback resolves resource_class and identify the relevant existing callback test, since no test is named in the issue. Done means the callback completes without the RuntimeError.

Written by the indexing model from the issue text.