"Successfully authenticated/Authentication token expired, performing re-login" loop on HTTPS Zabbix

[d1nuc0m]

Describe the bug

When adding an HTTPS Zabbix data source with a self-signed certificate (selected Skip TLS certificate validation), the plugin loops onto authentication

logger=plugin.alexanderzobnin-zabbix-datasource t=2025-02-25T13:39:18.297850361+01:00 level=debug msg="Zabbix request" method=hostgroup.get
logger=plugin.alexanderzobnin-zabbix-datasource t=2025-02-25T13:39:18.297891781+01:00 level=debug msg="performing query params migration" version=70 dsName=zabbix-datasource pluginId=alexanderzobnin-zabbix-datasource uname=admin dsUid=aee4a8cpmqpz4b endpoint=callResource method=hostgroup.get
logger=plugin.alexanderzobnin-zabbix-datasource t=2025-02-25T13:39:18.361275494+01:00 level=debug msg="Authentication token expired, performing re-login"
logger=plugin.alexanderzobnin-zabbix-datasource t=2025-02-25T13:39:18.361338174+01:00 level=debug msg="performing query params migration" dsUid=aee4a8cpmqpz4b method=user.login pluginId=alexanderzobnin-zabbix-datasource uname=admin dsName=zabbix-datasource endpoint=callResource version=70
logger=plugin.alexanderzobnin-zabbix-datasource t=2025-02-25T13:39:18.515508722+01:00 level=debug msg="Successfully authenticated" user=Admin url=https://zabbix.example.com/api_jsonrpc.php
logger=plugin.alexanderzobnin-zabbix-datasource t=2025-02-25T13:39:18.515556322+01:00 level=debug msg="Zabbix request" method=hostgroup.get
logger=plugin.alexanderzobnin-zabbix-datasource t=2025-02-25T13:39:18.515589002+01:00 level=debug msg="performing query params migration" endpoint=callResource pluginId=alexanderzobnin-zabbix-datasource version=70 dsName=zabbix-datasource dsUid=aee4a8cpmqpz4b method=hostgroup.get uname=admin
logger=plugin.alexanderzobnin-zabbix-datasource t=2025-02-25T13:39:18.574832312+01:00 level=debug msg="Authentication token expired, performing re-login"
(...)

And so on

Zabbix endpoint is working, correctly answers to test queries such as:

curl -k --request POST  --url 'https://zabbix.example.com/api_jsonrpc.php'  --header 'Content-Type: application/json-rpc'  --data '{"jsonrpc":"2.0","method":"user.login","params":{"username":"Admin","password":"MySecretPasswordHere"},"id":1}'

{"jsonrpc":"2.0","result":"LOREMIPSUM","id":1}

Plugin is able to authenticate against another Zabbix instance using cleartext (no HTTPS)

Expected behavior
Plugin works regardless of HTTP/HTTPS

Screenshots
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Network data
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Software versions

Grafana	Zabbix	Grafana-Zabbix Plugin
11.5.2	7.0.9	5.0.2

EDITS

• 2025/02/27 - tested with Grafana-Zabbix 5.0.2

[d1nuc0m]

@ivanahuckova let me know if more information and/or a MWE are needed