sephiroth-j edited a comment on pull request #311: URL: https://github.com/apache/tomcat/pull/311#issuecomment-653173711
I observed the exception in a project with Spring Boot 2.3 and Vaadin 14.2 with an enabled [`ForwardedHeaderFilter`](https://github.com/spring-projects/spring-framework/blob/master/spring-web/src/main/java/org/springframework/web/filter/ForwardedHeaderFilter.java). The setup was Traefik as reverse proxy with TLS termination forwarding the request from the client to the backend listening on plain HTTP. The client starts a websocket request using the URI scheme "wss://". Traefik adds the header "X-Forwared-Proto: wss" (_among others_). `ForwardedHeaderFilter` alters the scheme property of the `HttpServletRequest` to the value from the "X-Forwared-Proto" header. The result is an internal server error (500) caused by that `IllegalArgumentException`. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@tomcat.apache.org For additional commands, e-mail: dev-h...@tomcat.apache.org
