[Swarm mode] Dashboard does not work on RC4

[bvis]

Hi,

I don't know why but in one of my traefik services the dashboard does not work when I update the image to the rc4.

What I can see in the dashboard page is:

<pre>
<a href="DONT-EDIT-FILES-IN-THIS-DIRECTORY.md">DONT-EDIT-FILES-IN-THIS-DIRECTORY.md</a>
<a href="assets/">assets/</a>
<a href="traefik.icon.png">traefik.icon.png</a>
</pre>

How to reproduce it:

docker service update --image traefik:v1.1.0-rc4 traefik-pub
traefik-pub

How to "fix" it:

docker service update --image traefik:v1.1.0-rc3 traefik-pub
traefik-pub

It seems it works during some time, but suddenly it stops working.

I've not seen anything in the logs that could allow me to know more about it, even launching it with "logLevel=DEBUG".

[bvis]

It seems to work correctly in the 1.1 version. I'll close this issue, if I find the problem again I'll reopen it.