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ANTHROPIC_CUSTOM_HEADERS lost after Deep Link import - CC Switch

Quick fix

Upgrade to v3.12.0 or later to fix a bug where custom environment variables are dropped during Deep Link import.

Symptom

Section titled “Symptom”
Error output
ANTHROPIC_CUSTOM_HEADERS、ANTHROPIC_DEFAULT_HAIKU_MODEL、API_TIMEOUT_MS等均丢失。
English translation

ANTHROPIC_CUSTOM_HEADERS, ANTHROPIC_DEFAULT_HAIKU_MODEL, API_TIMEOUT_MS, and similar values are all lost.

Cause

Section titled “Cause”

In cc-switch v3.15.0 and earlier, importing a Provider configuration through a Deep Link saves only standard fields mapped from URL query parameters, such as ANTHROPIC_AUTH_TOKEN. Non-standard custom env fields passed after base64 decoding of the config parameter, such as ANTHROPIC_CUSTOM_HEADERS, are discarded. v3.12.0 fixed a similar issue during Provider switching, but the Deep Link import logic was not fully corrected until a later version. This prevents users from persisting environment variables that carry extra request headers or timeout settings through Deep Link.

Note: Issue #6357 is a feature request for the standalone Claude Desktop app to support more general upstream header overrides. It is separate from the Deep Link import data-loss bug and is not covered by this fix.

Fix

Section titled “Fix”

  1. Upgrade cc-switch to the latest version that fixes this issue (v3.12.0 or later).

  2. Import the Provider again using the Deep Link and verify that the custom env fields in config are preserved.

Affected Versions

Section titled “Affected Versions”
Toolclaude-code
Version3.11.0 - 3.15.0
PlatformsmacOS

Source Issues

Section titled “Source Issues”

This page is distilled from 1 real issues

FAQ

Section titled “FAQ”
Why did my ANTHROPIC_CUSTOM_HEADERS disappear after import?
This is a bug in v3.15.0 and earlier. The Deep Link import logic did not merge the full env block from config. Upgrade the software version to resolve it.
Is Issue #6357 about custom header support related to this?
No. #6357 is a feature request to add native UI configuration of upstream request headers for the Claude Desktop app. This page covers the Deep Link import data-loss bug.
Section titled “Related problems”
Codex provider API keys overwrite each other after a restart or switchEnable CC Switch local proxy takeover, or use experimental_bearer_token in config.toml, to bypass the auth.json sync defect.7 issues mergedModelScope reports 401 token invalid - Claude CodeAdd ANTHROPIC_MODEL to the provider environment variables in cc-switch to resolve the 401. It is not synced to settings.json by design.2 issues merged"There's an issue with the selected model"Upgrade cc-switch to v3.13.0+ for the environment variable sync fix, and use the alias mapping variables to override the default model.4 issues merged

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