User type selector, theme selector, language selector empty on Zabbix 7.4.x

[mgarcia]

I notice that since I upgraded to zabbix 7.4.x the User Type selector and selectors of the users are now empty, the values are not filled from the database. The user Type selector is empty, and in this role, the Dashboards check should be activated, as you cansee in the user details:





In the User details, also these selectors are empty:



Zabbix is updated to 7.4.2 and it's running over Docker containers with this Docker Compose configuration (some sensitive data has been deleted). Server is a Ubuntu 24.04 just with Docker installed

services:
zabbix-haproxy:
env_file:
- .env
container_name: zabbix_haproxy
restart: unless-stopped
build:
context: ./haproxy
volumes:
- ./haproxy/haproxy.cfg:/usr/local/etc/haproxy/haproxy.cfg:ro
ports:
- "80:80"
- "443:443"
- "30001:8484"
depends_on:
- zabbix-web-nginx-mysql
networks:
- zabbix-net

zabbix-agent:
container_name: zabbix_agent2
image: zabbix/zabbix-agent2:latest
restart: unless-stopped
environment:
ZBX_HOSTNAME: "Zabbix server"
ZBX_LISTENPORT: "10050"
ports:
- "10050:10050"
networks:
- zabbix-net
volumes:
- /:/rootfs
- /var/run:/var/run
privileged: true

zabbix-server:
container_name: zabbix_server
# build:
# context: ./zabbix
image: zabbix/zabbix-server-mysql:latest
restart: unless-stopped
environment:
ZBX_API_URL: ""
ZBX_API_TOKEN: ""
ZBX_CACHESIZE: 128M
ZBX_VALUECACHESIZE: 32M
ZBX_TRENDCACHESIZE: 32M
ZBX_HISTORYCACHESIZE: 32M
ZBX_HISTORYINDEXCACHESIZE: 16M
ZBX_NODEADDRESS: zabbix-server
ZBX_NODEADDRESSPORT: 10051
env_file:
- .env
ports:
- "10051:10051"
depends_on:
- zabbix-mysql-server
networks:
- zabbix-net

zabbix-mysql-server:
container_name: zabbix_mysql_server
restart: unless-stopped
image: mysql:8.0
env_file:
- .env
volumes:
- /mnt/volume_data/mysql:/var/lib/mysql
networks:
- zabbix-net
command: --log_bin_trust_function_creators=1 --binlog-expire-logs-seconds=432000 --character-set-server=utf8mb4 --collation-server=utf8mb4_bin

zabbix-web-nginx-mysql:
container_name: zabbix_web_server
restart: unless-stopped
env_file:
- .env
image: zabbix/zabbix-web-nginx-mysql:latest
ports:
- "8080:8080"
depends_on:
- zabbix-server
networks:
- zabbix-net

networks:
zabbix-net:
driver: bridge
​

What could be the issue?

[mgarcia]

Quick update, when I open the console of the browser, I see this JS error

jsLoader.php?lang=en…uiMessaging=1:22038Uncaught ReferenceError: Cannot access 'Template' before initialization at ZSelect.addOption (jsLoader.php?lang=en…essaging=1:22038:22) at ZSelect.init (jsLoader.php?lang=en…essaging=1:21993:13) at ZSelect.connectedCallback (jsLoader.php?lang=en…Messaging=1:21898:8) atjsLoader.php?lang=en…essaging=1:22579:16

And it looks like to having the domain behind Cloudflare beign proxied: https://www.zabbix.com/forum/zabbix-...-a-constructor

Let's see how can it be solved now.

[mgarcia]

Ok, I found a way to solve it, and it's to include a Page Rule in Cloudflare to disable Rocket Loader for the hostname needed. I hope it helps somebody else.

[mm1975]

Thank you, mgarcia

I was looking for the exact configuration that broke my dropdown selectors after enabling everything available in Cloudflare.

Disabling Rocket Loader did the trick!

I'm also using the docker image, but deployed via Helm in a k8s cluster, with cloudflared tunnel connected to their WAF. Pretty neat setup, I recommend.

Cheers!
MM