title: Omniauth-twitter with Rails 5 stopped working! OAuth::Unauthorized 403 Forbidden
body: <p>Everything was working fine and Omniauth has stopped working suddenly. I didn't make any code changes. </p>
  
  <p>I checked Twitter Apps Settings:
  I have callback url to my main production url, and  Callback URL Locked to  No. All keys are correct.</p>
  
  <p>Any idea? </p>
  
  <hr>
  
  <p>OAuth::Unauthorized </p>
  
  <p>403 Forbidden </p>
  
  <p><a href="https://i.stack.imgur.com/giBXr.png" rel="noreferrer"><img src="https://i.stack.imgur.com/giBXr.png" alt="enter image description here"></a></p>