Docker label rules[].value for path matchers is translated to capital letters #673

New Issue

MrUnknownDE · 2026-04-05T17:32:49+02:00

MrUnknownDE commented

2026-04-05 17:32:49 +02:00

Originally created by @Quantum1337 on 11/4/2025

Describe the Bug

Hello,

I´m using the blueprint feature together with docker labels. I´m encountering a problem with v1.12.1. The Labels are
translated to capital letters:

It seems that the rules are somehow case sensitive. It doesn´t work correctly for the capital lettters. When I´m changing it to lower case manually, everything works as expected.

Thank you for your work !

Environment

OS Type & Version: Ubuntu 22.04
Pangolin Version: 1.12.1
Gerbil Version: 1.2.2
Traefik Version: 3.5
Newt Version: 1.6.0

To Reproduce

Write a rule with lower case pathes

Expected Behavior

The path is exactly translated -> lower case

*Originally created by @Quantum1337 on 11/4/2025* ### Describe the Bug Hello, I´m using the blueprint feature together with docker labels. I´m encountering a problem with v1.12.1. The Labels are translated to capital letters: <img width="523" height="62" alt="Image" src="https://github.com/user-attachments/assets/b9c72178-0ba0-40a5-ab28-503bb469bc39" /> <img width="1867" height="78" alt="Image" src="https://github.com/user-attachments/assets/7df555cc-ddd9-42ff-884f-a87a36abd36e" /> It seems that the rules are somehow case sensitive. It doesn´t work correctly for the capital lettters. When I´m changing it to lower case manually, everything works as expected. Thank you for your work ! ### Environment - OS Type & Version: Ubuntu 22.04 - Pangolin Version: 1.12.1 - Gerbil Version: 1.2.2 - Traefik Version: 3.5 - Newt Version: 1.6.0 ### To Reproduce Write a rule with lower case pathes ### Expected Behavior The path is exactly translated -> lower case

MrUnknownDE closed this issue

2026-04-05 17:32:49 +02:00

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main

dev

dependabot/npm_and_yarn/dev-minor-updates-b4e5d6b9c5

revert-2766-feature/systemd-install-instructions

dependabot/npm_and_yarn/prod-patch-updates-05702d39f2

dependabot/npm_and_yarn/next-16.2.1

dependabot/npm_and_yarn/recharts-3.8.1

alerting-rules

private-site-ha

dependabot/docker/docker/library/node-25-slim

ssh

delete-account

msg-delivery

org-only-idp

cicd

patch

site-targets-auto-login

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Reference: github/pangolin#673