Fix signin with OmniAuth providers
OmniAuth CSRF protection was broken with the move to Rails 4.2 since the CSRF logic in Rails changed.
This new implementation calls out to Rails instead of copying its code, which is far easier to maintain.
OmniAuth CSRF protection was broken with the move to Rails 4.2 since the CSRF logic in Rails changed.
This new implementation calls out to Rails instead of copying its code, which is far easier to maintain.