When HTTP request tracing is enabled, the NO_PROXY injected into traced jobs
was built solely from the no_proxy_hosts instance setting, ignoring the
worker container's own NO_PROXY. Enabling tracing therefore silently dropped
every exclusion an operator had already configured at the container level,
funneling those hosts into the MITM proxy (and on to any upstream corporate
proxy). The upstream-relay side already honored the container NO_PROXY; this
makes the injected-into-jobs side symmetric by merging both sources.
Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>