Werk #18305: Avoid "HTTP 404: {"detail":"Not Found"}" in Checkmk UI and REST API

Component

User interface

Title

Avoid "HTTP 404: {"detail":"Not Found"}" in Checkmk UI and REST API

Date

Jul 17, 2025

Level

Trivial Change

Class

Bug Fix

Compatibility

Compatible - no manual interaction needed

Checkmk versions & editions

2.5.0b1	Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Ultimate MT
2.4.0p9	Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Ultimate MT

In case ~/.bashrc or ~/.profile specified the environment variables HTTP_PROXY or http_proxy, various UI or REST API interactions such as service discoveries, activating changes or displaying the parameters of a service (Parameters for this service in dropdown menu) crashed with the above error message.

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