Spring Boot & Zuul not honoring proxied favicon

Question

I've tried a few different configurations to tell Zuul to use the favicon of my proxied web-server, but I've come up empty handed. Here's what I have configured as of now on my Zuul server.

zuul.routes.favicon.path=/favicon.ico
zuul.routes.favicon.url=http://mycontentserver.com/favicon.ico
spring.mvc.favicon.enabled=false

But the responses?

$ curl -sIL http://myzuulserver.com/favicon.ico
HTTP/1.1 404 Not Found

Which should route to...

$ curl -sIL http://mycontentserver.com/favicon.ico
HTTP/1.1 200 OK

Keeping the Spring MVC favicon enabled just returns the typical Spring icon.

Do I have something misconfigured here? Am I misunderstanding how favicons work?

Answer 1

So spring cloud netflix zuul appends the path to the url. The 404 you are experiencing is from mycontentserver.com not zuul. It is asking for http://mycontentserver.com/favicon.ico/favicon.ico.

Set zuul.routes.favicon.url=http://mycontentserver.com/.