Werk #13492: Notification plugins: Fix proxy setting "Connect without proxy"

Component Notifications
Title Notification plugins: Fix proxy setting "Connect without proxy"
Date Nov 10, 2021
Checkmk Editon Checkmk Raw (CRE)
Checkmk Version 2.1.0i1 2.0.0p16
Level Trivial Change
Class Bug Fix
Compatibility Compatible - no manual interaction needed

For some notification plugins, proxy settings can be configured. One of the available options is to not use any proxy ("Connect without proxy"). This setting is intended to also bypass proxy servers defined via environment variables (HTTP_PROXY, ...), which did not work.

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