[BUG] Claude Code fails to start in WSL2 when used alongside Windows PowerShell with Claude in Chrome enabled

Preflight Checklist

• [x] I have searched existing issues and this hasn't been reported yet
• [x] This is a single bug report (please file separate reports for different bugs)
• [x] I am using the latest version of Claude Code

What's Wrong?

After configuring Claude in Chrome in a PowerShell environment on Windows, attempting to run Claude Code in WSL2 results in the error "Claude in Chrome Native Host not supported on this platform" and Claude Code fails to start.

What Should Happen?

PowerShell and WSL2 environments should be independent, so Claude in Chrome connection settings should be configured separately for each environment. The behavior of Claude Code in WSL2 should not be affected by settings or configurations made in PowerShell.

Error Messages/Logs

$ claude
file:///home/natsuume/.asdf/installs/nodejs/24.2.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:2730
`;import{chmod as eQ7,mkdir as x19,readFile as v19,writeFile as k19,readdir as AB7,access as T19}from"fs/promises";import{homedir as f19}from"os";import{join as v$}from"path";import{fileURLToPath as QB7}from"url";function lV1(A){if(m9()&&A!==!0)return!1;if(A===!0)return!0;if(A===!1)return!1;if(V0(process.env.CLAUDE_CODE_ENABLE_CFC))return!0;if(KK(process.env.CLAUDE_CODE_ENABLE_CFC))return!1;let Q=v1();if(Q.claudeInChromeDefaultEnabled!==void 0)return Q.claudeInChromeDefaultEnabled;return!1}function dq0(){let A=t7(),Q=kDA.map((B)=>`mcp__claude-in-chrome__${B.name}`);if(A){let B=`"${process.execPath}" --chrome-native-host`;return y19(B).then((G)=>S19(G)),{mcpConfig:{[Ek]:{type:"stdio",command:process.execPath,args:["--claude-in-chrome-mcp"],scope:"dynamic"}},allowedTools:Q,systemPrompt:mq0}}else{let B=QB7(import.meta.url),G=v$(B,".."),Z=v$(G,"cli.js");return y19(`"${process.execPath}" "${Z}" --chrome-native-host`).then((J)=>S19(J)),{mcpConfig:{[Ek]:{type:"stdio",command:"node",args:[`${Z}`,"--claude-in-chrome-mcp"],scope:"dynamic"}},allowedTools:Q,systemPrompt:mq0}}}function ZB7(){let A=xQ(),Q=f19();switch(A){case"macos":return v$(Q,"Library","Application Support","Google","Chrome","NativeMessagingHosts");case"linux":return v$(Q,".config","google-chrome","NativeMessagingHosts");case"windows":{let B=process.env.APPDATA||v$(Q,"AppData","Local");return v$(B,"Claude Code","ChromeNativeHost")}case"wsl":default:return null}}async function S19(A){let Q=ZB7();if(!Q)throw Error("Claude in Chrome Native Host not supported on this platform");let B=v$(Q,GB7),G={name:pV1,description:"Claude Code Browser Extension Native Host",path:A,type:"stdio",allowed_origins:["chrome-extension://fcoeoabgfenejglbffodgkkbkcdhcgfn/",...[]]},Z=JSON.stringify(G,null,2);if(await v19(B,"utf-8").catch(()=>null)===Z)return;if(await x19(Q,{recursive:!0}),await k19(B,Z),xQ()==="windows")YB7(B);k(`[Claude in Chrome] Installed Chrome native host manifest at: ${B}`),j4A().then((J)=>{if(J)k("[Claude in Chrome] First-time install detected, opening reconnect page in Chrome"),gsB(BB7);else k("[Claude in Chrome] First-time install detected, but extension not installed, skipping reconnect")})}function YB7(A){T6("reg",["add",`${P19}`,"/ve","/t","REG_SZ","/d",A,"/f"]).then((Q)=>{if(Q.code===0)k(`[Claude in Chrome] Registered Chrome native host in Windows registry: ${P19}\\${pV1}`);else k(`[Claude in Chrome] Failed to register Chrome native host in Windows registry: ${Q.stderr}`)})}async function y19(A){let Q=xQ(),B=v$(gQ(),"chrome"),G=Q==="windows"?v$(B,"chrome-native-host.bat"):v$(B,"chrome-native-host"),Z=Q==="windows"?`@echo off
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                

Error: Claude in Chrome Native Host not supported on this platform
    at S19 (file:///home/natsuume/.asdf/installs/nodejs/24.2.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:2730:1487)
    at file:///home/natsuume/.asdf/installs/nodejs/24.2.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:2730:937

Node.js v24.2.0

Steps to Reproduce

1. Enable Claude in Chrome settings in PowerShell on Windows (run claude --chrome if already set up)
2. Run claude command in WSL2 environment
3. Error occurs: "Claude in Chrome Native Host not supported on this platform"

Claude Model

None

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

2.0.72

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

Windows Terminal

Additional Information

Workaround:
Running claude --no-chrome in the WSL2 environment allows Claude Code to start normally.

Side effect of the workaround:
After using this workaround, launching Claude Code in PowerShell also requires explicitly specifying the --chrome flag to use the Claude in Chrome functionality. This makes the default behavior inconsistent across environments.

Environment details:

• Windows PowerShell on Windows
• WSL2 (Linux) with bash shell
• WSL2 is configured to use the Windows-installed Chrome browser

Observation:
After enabling Claude in Chrome in the Windows PowerShell environment, running claude in WSL2 consistently fails with the error:
"Claude in Chrome Native Host not supported on this platform".

Hypothesis:
After Claude in Chrome is enabled on Windows, Claude Code in WSL2 appears to detect Chrome integration as enabled.
This may be caused by either shared CLI configuration/state between Windows and WSL2, or by Claude Code detecting Chrome or extension-side state from the Windows environment.
The exact mechanism has not been confirmed.