CLAUDE_CODE_DISABLE_LOOPED_CROSS_CERT_DROP
A Claude Code environment variable, read out of the shipped bundle. It has been in the build since v2.1.315, including the newest one read.
Two new environment variables, named for turning off the dropping of looped cross-signed and self-named certificates
Not Anthropic's. This is the line from the earliest changelog entry here that named it, v2.1.315.
In the changelogs
3Releases whose published page names CLAUDE_CODE_DISABLE_LOOPED_CROSS_CERT_DROP.
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v2.1.315
Two new settings to stop certain certificates being dropped
Two new environment variables, named for turning off the dropping of looped cross-signed and self-named certificates
found in this entry's text
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v2.1.315
Certificates that name themselves as issuer are dropped unless they check out
Claude Code now drops a self-named CA certificate it cannot verify and warns you, unless
CLAUDE_CODE_DISABLE_SELF_NAMED_CERT_DROP=1is setfound in this entry's text
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v2.1.315
Some
NODE_EXTRA_CA_CERTScertificates are now dropped, with two ways to keep themClaude Code now drops two kinds of certificate from
NODE_EXTRA_CA_CERTS, and two new environment variables keep themfound in this entry's text
First cited
1The earliest release whose published evidence quoted CLAUDE_CODE_DISABLE_LOOPED_CROSS_CERT_DROP was v2.1.315, 30 Oct 2026. That is the oldest release this project wrote about it, so it is a floor on the name's age and not the release that introduced it. It is not a presence reading: which builds carried the name is the table below.
Presence across releases
1Build by build
1One row per release since the first build this name was read out of. Absent means the build was read and the name was not in it, never mined means no bundle for that release was ever archived, and a declared type or a default is only ever what that release's own bundle stated.
Read out of the published npm bundle release by release, and out of Anthropic's own documentation as this site captured it. Nothing on this page is a description anybody here wrote about what the environment variable does. All environment variables.