Q&A (please complete the following information)

• OS: Windows 8.1
• Browser: Opera, Chrome, Firefox
• Version: 53.0.2907.68
• Method of installation: in Demo at http://petstore.swagger.io

Describe the bug you're encountering

The Authorize Popup is not clearing the apiKey when LogOut button is clicked.

To reproduce...

Steps to reproduce the behavior:

1. Go to http://petstore.swagger.io
2. Click on the Authorize popup
3. Scroll down to the API key section
4. Type a text in the textbox
5. Click on Authorize
6. Without closing the Popup, click on Logout and again Authorize.
7. The APIKey is authorized even though there is nothing in the textbox

Expected behavior

It shouldn't allow to authorize an empty textbox

Screenshots