/swagger-ui prompts to save a useless file instead of redirecting to something useful

Load this in a browser:

http://localhost:8081/swagger-ui

You are prompted to save a file. Saving this file on a local machine takes about 15 seconds. When it is done, all this file contains is this text:

css
fonts
images
index.html
lang
lib
o2c.html
swagger-ui.min.js

Expected

redirect to proper swagger-ui url of http://localhost:8081/swagger-ui/#/ and load that instead.

Users are not going to anticipate /swagger-ui/#/ and are going to frequently type /swagger-ui and expect something more useful to happen. When it doesn't, they will file support questions.