[Nightly] Admin with TFA blank page

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I've found a bug and checked that ...

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Description

When an admin adds a TOTP second factor the user can no longer login to the admin panel.
The login page and TFA-request opens correctly but after submitting the TFA-code the user gets redirected to `/user` with a blank page. Manual opening `/admin` results in a redirect to `/user` with a blank page too.

The error is reproducible on the demo-nightly.

Logs:

I could not identify any useful log entry in 'docker compose logs -f' while reproducing the error

Steps to reproduce:

1. Login as admin
2. Add TOTP second factor (I don't know if other TFA types are affected a I don't own a hardware token)
3. Logout
4. Try to login again, password and TFA succeed, but results in an emtpy page

Which branch are you using?

nightly

Which architecture are you using?

x86

Operating System:

Rocky Linux 9.4

Server/VM specifications:

4GB, 4C

Is Apparmor, SELinux or similar active?

SELinux

Virtualization technology:

Proxmox

Docker version:

26.1.4

docker-compose version or docker compose version:

v2.27.1

mailcow version:

2024-04

Reverse proxy:

Traefik

Logs of git diff:

git diff origin/master results in 83975 changed lines, but it's a fresh install on which I ran the update-script one time.

Logs of iptables -L -vn:

Chain INPUT (policy ACCEPT 0 packets, 0 bytes)
 pkts bytes target     prot opt in     out     source               destination         

Chain FORWARD (policy DROP 0 packets, 0 bytes)
 pkts bytes target     prot opt in     out     source               destination         
2787K  392M MAILCOW    0    --  *      *       0.0.0.0/0            0.0.0.0/0            /* mailcow */
2787K  392M DOCKER-USER  0    --  *      *       0.0.0.0/0            0.0.0.0/0           
2787K  392M DOCKER-ISOLATION-STAGE-1  0    --  *      *       0.0.0.0/0            0.0.0.0/0           
2397K  358M ACCEPT     0    --  *      br-mailcow  0.0.0.0/0            0.0.0.0/0            ctstate RELATED,ESTABLISHED
 242K   15M DOCKER     0    --  *      br-mailcow  0.0.0.0/0            0.0.0.0/0           
 147K   19M ACCEPT     0    --  br-mailcow !br-mailcow  0.0.0.0/0            0.0.0.0/0           
 242K   15M ACCEPT     0    --  br-mailcow br-mailcow  0.0.0.0/0            0.0.0.0/0           
    0     0 ACCEPT     0    --  *      docker0  0.0.0.0/0            0.0.0.0/0            ctstate RELATED,ESTABLISHED
    0     0 DOCKER     0    --  *      docker0  0.0.0.0/0            0.0.0.0/0           
    0     0 ACCEPT     0    --  docker0 !docker0  0.0.0.0/0            0.0.0.0/0           
    0     0 ACCEPT     0    --  docker0 docker0  0.0.0.0/0            0.0.0.0/0           

Chain OUTPUT (policy ACCEPT 0 packets, 0 bytes)
 pkts bytes target     prot opt in     out     source               destination         

Chain DOCKER (2 references)
 pkts bytes target     prot opt in     out     source               destination         
    0     0 ACCEPT     6    --  !br-mailcow br-mailcow  0.0.0.0/0            172.22.1.249         tcp dpt:6379
    0     0 ACCEPT     6    --  !br-mailcow br-mailcow  0.0.0.0/0            172.22.1.5           tcp dpt:8983
    0     0 ACCEPT     6    --  !br-mailcow br-mailcow  0.0.0.0/0            172.22.1.6           tcp dpt:3306
    0     0 ACCEPT     6    --  !br-mailcow br-mailcow  0.0.0.0/0            172.22.1.250         tcp dpt:12345
    0     0 ACCEPT     6    --  !br-mailcow br-mailcow  0.0.0.0/0            172.22.1.250         tcp dpt:4190
    0     0 ACCEPT     6    --  !br-mailcow br-mailcow  0.0.0.0/0            172.22.1.250         tcp dpt:995
  213 12780 ACCEPT     6    --  !br-mailcow br-mailcow  0.0.0.0/0            172.22.1.8           tcp dpt:443
    0     0 ACCEPT     6    --  !br-mailcow br-mailcow  0.0.0.0/0            172.22.1.250         tcp dpt:993
   10   600 ACCEPT     6    --  !br-mailcow br-mailcow  0.0.0.0/0            172.22.1.8           tcp dpt:80
    0     0 ACCEPT     6    --  !br-mailcow br-mailcow  0.0.0.0/0            172.22.1.250         tcp dpt:143
    0     0 ACCEPT     6    --  !br-mailcow br-mailcow  0.0.0.0/0            172.22.1.250         tcp dpt:110
    0     0 ACCEPT     6    --  !br-mailcow br-mailcow  0.0.0.0/0            172.22.1.253         tcp dpt:587
    0     0 ACCEPT     6    --  !br-mailcow br-mailcow  0.0.0.0/0            172.22.1.253         tcp dpt:465
    0     0 ACCEPT     6    --  !br-mailcow br-mailcow  0.0.0.0/0            172.22.1.253         tcp dpt:25

Chain DOCKER-ISOLATION-STAGE-1 (1 references)
 pkts bytes target     prot opt in     out     source               destination         
 147K   19M DOCKER-ISOLATION-STAGE-2  0    --  br-mailcow !br-mailcow  0.0.0.0/0            0.0.0.0/0           
    0     0 DOCKER-ISOLATION-STAGE-2  0    --  docker0 !docker0  0.0.0.0/0            0.0.0.0/0           
  11M 1592M RETURN     0    --  *      *       0.0.0.0/0            0.0.0.0/0           

Chain DOCKER-ISOLATION-STAGE-2 (2 references)
 pkts bytes target     prot opt in     out     source               destination         
    0     0 DROP       0    --  *      br-mailcow  0.0.0.0/0            0.0.0.0/0           
    0     0 DROP       0    --  *      docker0  0.0.0.0/0            0.0.0.0/0           
 596K   80M RETURN     0    --  *      *       0.0.0.0/0            0.0.0.0/0           

Chain DOCKER-USER (1 references)
 pkts bytes target     prot opt in     out     source               destination         
  11M 1592M RETURN     0    --  *      *       0.0.0.0/0            0.0.0.0/0           

Chain MAILCOW (1 references)
 pkts bytes target     prot opt in     out     source               destination         
    0     0 DROP       6    --  !br-mailcow br-mailcow  0.0.0.0/0            0.0.0.0/0            /* mailcow isolation */

Logs of ip6tables -L -vn:

Chain INPUT (policy ACCEPT 0 packets, 0 bytes)
 pkts bytes target     prot opt in     out     source               destination         

Chain FORWARD (policy ACCEPT 0 packets, 0 bytes)
 pkts bytes target     prot opt in     out     source               destination         

Chain OUTPUT (policy ACCEPT 0 packets, 0 bytes)
 pkts bytes target     prot opt in     out     source               destination

Logs of iptables -L -vn -t nat:

Chain PREROUTING (policy ACCEPT 1257K packets, 91M bytes)
 pkts bytes target     prot opt in     out     source               destination         
  892 53520 DOCKER     0    --  *      *       0.0.0.0/0            0.0.0.0/0            ADDRTYPE match dst-type LOCAL

Chain INPUT (policy ACCEPT 0 packets, 0 bytes)
 pkts bytes target     prot opt in     out     source               destination         

Chain OUTPUT (policy ACCEPT 5151 packets, 380K bytes)
 pkts bytes target     prot opt in     out     source               destination         
    0     0 DOCKER     0    --  *      *       0.0.0.0/0           !127.0.0.0/8          ADDRTYPE match dst-type LOCAL

Chain POSTROUTING (policy ACCEPT 995K packets, 61M bytes)
 pkts bytes target     prot opt in     out     source               destination         
47797 3673K MASQUERADE  0    --  *      !br-mailcow  172.22.1.0/24        0.0.0.0/0           
    0     0 MASQUERADE  0    --  *      !docker0  172.17.0.0/16        0.0.0.0/0           
    0     0 MASQUERADE  6    --  *      *       172.22.1.249         172.22.1.249         tcp dpt:6379
    0     0 MASQUERADE  6    --  *      *       172.22.1.5           172.22.1.5           tcp dpt:8983
    0     0 MASQUERADE  6    --  *      *       172.22.1.6           172.22.1.6           tcp dpt:3306
    0     0 MASQUERADE  6    --  *      *       172.22.1.250         172.22.1.250         tcp dpt:12345
    0     0 MASQUERADE  6    --  *      *       172.22.1.250         172.22.1.250         tcp dpt:4190
    0     0 MASQUERADE  6    --  *      *       172.22.1.250         172.22.1.250         tcp dpt:995
    0     0 MASQUERADE  6    --  *      *       172.22.1.8           172.22.1.8           tcp dpt:443
    0     0 MASQUERADE  6    --  *      *       172.22.1.250         172.22.1.250         tcp dpt:993
    0     0 MASQUERADE  6    --  *      *       172.22.1.8           172.22.1.8           tcp dpt:80
    0     0 MASQUERADE  6    --  *      *       172.22.1.250         172.22.1.250         tcp dpt:143
    0     0 MASQUERADE  6    --  *      *       172.22.1.250         172.22.1.250         tcp dpt:110
    0     0 MASQUERADE  6    --  *      *       172.22.1.253         172.22.1.253         tcp dpt:587
    0     0 MASQUERADE  6    --  *      *       172.22.1.253         172.22.1.253         tcp dpt:465
    0     0 MASQUERADE  6    --  *      *       172.22.1.253         172.22.1.253         tcp dpt:25

Chain DOCKER (2 references)
 pkts bytes target     prot opt in     out     source               destination         
    0     0 RETURN     0    --  br-mailcow *       0.0.0.0/0            0.0.0.0/0           
    0     0 RETURN     0    --  docker0 *       0.0.0.0/0            0.0.0.0/0           
    0     0 DNAT       6    --  !br-mailcow *       0.0.0.0/0            127.0.0.1            tcp dpt:7654 to:172.22.1.249:6379
    0     0 DNAT       6    --  !br-mailcow *       0.0.0.0/0            127.0.0.1            tcp dpt:18983 to:172.22.1.5:8983
    0     0 DNAT       6    --  !br-mailcow *       0.0.0.0/0            127.0.0.1            tcp dpt:13306 to:172.22.1.6:3306
    0     0 DNAT       6    --  !br-mailcow *       0.0.0.0/0            127.0.0.1            tcp dpt:19991 to:172.22.1.250:12345
    0     0 DNAT       6    --  !br-mailcow *       0.0.0.0/0            0.0.0.0/0            tcp dpt:4190 to:172.22.1.250:4190
    0     0 DNAT       6    --  !br-mailcow *       0.0.0.0/0            0.0.0.0/0            tcp dpt:995 to:172.22.1.250:995
  213 12780 DNAT       6    --  !br-mailcow *       0.0.0.0/0            0.0.0.0/0            tcp dpt:443 to:172.22.1.8:443
    0     0 DNAT       6    --  !br-mailcow *       0.0.0.0/0            0.0.0.0/0            tcp dpt:993 to:172.22.1.250:993
   10   600 DNAT       6    --  !br-mailcow *       0.0.0.0/0            0.0.0.0/0            tcp dpt:80 to:172.22.1.8:80
    0     0 DNAT       6    --  !br-mailcow *       0.0.0.0/0            0.0.0.0/0            tcp dpt:143 to:172.22.1.250:143
    0     0 DNAT       6    --  !br-mailcow *       0.0.0.0/0            0.0.0.0/0            tcp dpt:110 to:172.22.1.250:110
    0     0 DNAT       6    --  !br-mailcow *       0.0.0.0/0            0.0.0.0/0            tcp dpt:587 to:172.22.1.253:587
    0     0 DNAT       6    --  !br-mailcow *       0.0.0.0/0            0.0.0.0/0            tcp dpt:465 to:172.22.1.253:465
    0     0 DNAT       6    --  !br-mailcow *       0.0.0.0/0            0.0.0.0/0            tcp dpt:25 to:172.22.1.253:25

Logs of ip6tables -L -vn -t nat:

Chain PREROUTING (policy ACCEPT 0 packets, 0 bytes)
 pkts bytes target     prot opt in     out     source               destination         

Chain INPUT (policy ACCEPT 0 packets, 0 bytes)
 pkts bytes target     prot opt in     out     source               destination         

Chain OUTPUT (policy ACCEPT 0 packets, 0 bytes)
 pkts bytes target     prot opt in     out     source               destination         

Chain POSTROUTING (policy ACCEPT 0 packets, 0 bytes)
 pkts bytes target     prot opt in     out     source               destination

DNS check:

172.64.155.249
104.18.32.7

mailcow / mailcow-dockerized

[Nightly] Admin with TFA blank page #5905

Contribution guidelines

I've found a bug and checked that ...

Description

Logs:

Steps to reproduce:

Which branch are you using?

Which architecture are you using?

Operating System:

Server/VM specifications:

Is Apparmor, SELinux or similar active?

Virtualization technology:

Docker version:

docker-compose version or docker compose version:

mailcow version:

Reverse proxy:

Logs of git diff:

Logs of iptables -L -vn:

Logs of ip6tables -L -vn:

Logs of iptables -L -vn -t nat:

Logs of ip6tables -L -vn -t nat:

DNS check: