Vaadin blocks Swagger-UI

Question

Iam trying to get swagger to work besides my Vaadin-Flow Application. Iam currently using Vaadin 22.0.4 with Spring-Boot 2.6.3 and springdoc-openapi-ui 1.6.5. The Swagger-ui should be available under http://localhost:8080/swagger-ui, but it is not:

I guess it gets blocked by vaadin in some way. Things like http://localhost:8080/v3/api-docs or Rest-Endpoints created by spring work fine.

Is there a way to allow a specific routes for swagger to work?

What i tried so far:

1. Using spring security to allow swagger (extending WebSecurityConfigurerAdapter and overriting configure). There is a example of one try in the repository linked below.
2. Using vaadin.urlMapping=/foo/* in the application.properties to change the root mapping from vaadin. That kinda works... Swagger is available under http://localhost:8080/swagger-ui and the Vaadin UI under http://localhost:8080/foo. I am just looking for the other way around. Vaadin should be available under http://localhost:8080/. But that shows that swagger would work.
3. Using Swagger 2
4. springdoc.swagger-ui.path

I also Uploaded a plain Vaadin project where the issue is reproducible: https://github.com/DerAzubi/swagger-test (to test the application just start the main function)

the last commit contains all changes made to the default vaadin starter.

Answer 1

This is fixed in Vaadin 23.3.0 but not in a fully automatic way. You can define paths to exclude, e.g. vaadin.excludeUrls=/swagger-ui/** and those will not be handled by the Vaadin servlet when it is mapped to /*