traefik: 1.2.2 breaks endpoints, redirect loop

What version of Traefik are you using (traefik version)?

1.2.2

What is your environment & configuration (arguments, toml…)?

Endpoints are added dynamically via Docker. Probably something is wrong with my configuration. 1.2.1 works, though.

traefikLogsFile = "data/traefik.log"
accessLogsFile = "data/access.log"
defaultEntryPoints = ["http", "https"]
[retry]
[entryPoints]
  [entryPoints.http]
  address = ":80"
    [entryPoints.http.redirect]
    entryPoint = "https"
  [entryPoints.https]
  address = ":443"
    [entryPoints.https.tls]
[acme]
email = "mail@example.com"
storageFile = "data/acme.json"
onDemand = false
caServer = "https://acme-v01.api.letsencrypt.org/directory"
entryPoint = "https"
acmeLogging = true

[[acme.domains]]
  main = "example.com"

[docker]
endpoint = "unix:///var/run/docker.sock"
domain = "example.com"
watch = true
exposedbydefault = false
swarmmode = false

What did you do?

Upgraded from 1.2.1 to 1.2.2.

What did you expect to see?

Normal operation.

What did you see instead?

All URLs result in a 302 loop.

If applicable, please paste the log output in debug mode (--debug switch)

> 255.255.255.255 - - [13/Apr/2017:07:15:58 +0000] "GET /my/url/ HTTP/2.0" 302 5 "" "User-Agent" 228 "" "" 0ms
> 255.255.255.255 - - [13/Apr/2017:07:15:58 +0000] "GET /my/url/ HTTP/2.0" 302 5 "" "User-Agent" 229 "" "" 0ms
> 255.255.255.255 - - [13/Apr/2017:07:15:58 +0000] "GET /my/url/ HTTP/2.0" 302 5 "" "User-Agent" 230 "" "" 0ms
> 255.255.255.255 - - [13/Apr/2017:07:15:58 +0000] "GET /my/url/ HTTP/2.0" 302 5 "" "User-Agent" 231 "" "" 0ms