After upgrading, app only displays: Could not navigate to ''

General
1

Spring Boot: 3.3.6
Vaadin: 24.5.10 / 2.6.2

We had to upgrade Vaadin due to some build environment issues (the app was previously on 2.1.16). After upgrading (on both 24.5 and 24.6), the app runs fine locally, but in production only displays: Could not navigate to ''

We’re not using spring security, and in application.properties we disable it in any case:
spring.autoconfigure.exclude=org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration,org.springframework.boot.autoconfigure.orm.jpa.HibernateJpaAutoConfiguration,org.springframework.boot.autoconfigure.security.servlet.SecurityAutoConfiguration,org.springframework.boot.autoconfigure.security.oauth2.client.servlet.OAuth2ClientAutoConfiguration

The main layout is annotated properly:


@AnonymousAllowed
public class MainLayout extends AppLayout {
2

Which build tool are you using? Have had recurring issues with jenkins, but since i have configured it to clear the workspace after each build those build problems are gone

3

Using Maven / Harness

4

Update: It looks like it was an issue with the offline key, once updated everything is working as expected