http-client: support CIDR in no_proxy - #2495
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silverwind wants to merge 3 commits into
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silverwind wants to merge 3 commits into
silverwind wants to merge 3 commits into
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Entries like 10.0.0.0/8 were compared as plain strings, so requests to IP hosts in such ranges went through the proxy even though curl, Go and most other clients bypass it. Co-Authored-By: Claude (Opus 5) <noreply@anthropic.com>
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🟡 Changes recommended
Reject malformed CIDR entries containing extra path components.
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Pull request overview
Adds IPv4 and IPv6 CIDR support to no_proxy handling in the HTTP client.
Changes:
- Uses Node’s
BlockListfor CIDR matching. - Adds tests for valid and invalid CIDR entries.
File summaries
| File | Description |
|---|---|
packages/http-client/src/proxy.ts |
Implements CIDR-based proxy bypass matching. |
packages/http-client/__tests__/proxy.test.ts |
Tests IPv4/IPv6 CIDR behavior. |
Review details
- Files reviewed: 2/2 changed files
- Comments generated: 1
- Review effort level: Lite
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An entry like 10.0.0.0/8/x was matched as 10.0.0.0/8. Co-Authored-By: Claude (Opus 5) <noreply@anthropic.com>
silverwind
commented
Sep 15, 2026
silverwind
changed the title
no_proxyno_proxy
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Support CIDR syntax in the
no_proxyparsing ofhttp-client.The best "spec" on this topic is https://about.gitlab.com/blog/we-need-to-talk-no-proxy/ which shows the go and ruby parsers and probably others support CIDR in
no_proxyand I have a specific use case where this broke when having10.0.0.0/8insideno_proxy.Created with assistance of Claude Opus 5 and GPT 6 Astra.