Agile Web Development with Rails 7: method: :delete not working (220)

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It’s working for me. The markup that is generated looks like the following:

<form class="button_to" method="post" action="/logout">
  <input type="hidden" name="_method" value="delete" autocomplete="off">
  <button type="submit">Logout</button>
  <input type="hidden" name="authenticity_token" value="93ee1GV1XHe-_BroB_DDYRxB2JBHYxdKNfPj7oYdJLR4B-uskKtPR0pvlBJgwp8tVI1Beb-sISg6pYuDH-qpzg" autocomplete="off">
</form>