claude-code - 💡(How to fix) Fix [BUG] --dangerously-skip-permissions -c combination causes "F1H is not a function" crash on session restore [1 comments, 2 participants]

claude-code2026-04-27 05:34:39

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anthropics/claude-code#53752•Fetched 2026-04-28 06:48:09

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Error Message

Error Messages/Logs

ERROR F1H is not a function. (In 'F1H(q)', 'F1H' is undefined)

Fix Action

Fix / Workaround

Workaround: Use the flags separately until resolved.

Code Example

ERROR  F1H is not a function. (In 'F1H(q)', 'F1H' is undefined)                                                                                                                                         

  /$bunfs/root/src/entrypoints/cli.js:9251:5663                                                                                                                                                             
   
   - <anonymous> (/$bunfs/root/src/entrypoints/cli.js:9251:5663)                                                                                                                                            
   - WR (/$bunfs/root/src/entrypoints/cli.js:492:63749)  
   - UY (/$bunfs/root/src/entrypoints/cli.js:492:76948)                                                                                                                                                     
   - j5 (/$bunfs/root/src/entrypoints/cli.js:492:76827)                                                                                                                                                   
   - UY (/$bunfs/root/src/entrypoints/cli.js:492:77745)                                                                                                                                                     
   - j5 (/$bunfs/root/src/entrypoints/cli.js:492:76827)  
   - UY (/$bunfs/root/src/entrypoints/cli.js:492:76926)                                                                                                                                                     
   - j5 (/$bunfs/root/src/entrypoints/cli.js:492:76827)                                                                                                                                                   
   - UY (/$bunfs/root/src/entrypoints/cli.js:492:77745)                                                                                                                                                     
   - j5 (/$bunfs/root/src/entrypoints/cli.js:492:76827)                                                                                                                                                   
   - async <anonymous> (/$bunfs/root/src/entrypoints/cli.js:18808:11089)

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Preflight Checklist

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

What's Wrong?

Running claude --dangerously-skip-permissions -c crashes immediately without launching the REPL. The onSessionRestored callback (F1H) is undefined when the F2q hook is initialized with enabled: false, but the -c flag triggers session restoration and calls the callback without a null guard, resulting in a TypeError.

What Should Happen?

Using --dangerously-skip-permissions and -c together should resume the most recent session while bypassing permission prompts. Both flags work correctly in isolation, so the combination should work as
well.

Error Messages/Logs

ERROR  F1H is not a function. (In 'F1H(q)', 'F1H' is undefined)                                                                                                                                         

  /$bunfs/root/src/entrypoints/cli.js:9251:5663                                                                                                                                                             
   
   - <anonymous> (/$bunfs/root/src/entrypoints/cli.js:9251:5663)                                                                                                                                            
   - WR (/$bunfs/root/src/entrypoints/cli.js:492:63749)  
   - UY (/$bunfs/root/src/entrypoints/cli.js:492:76948)                                                                                                                                                     
   - j5 (/$bunfs/root/src/entrypoints/cli.js:492:76827)                                                                                                                                                   
   - UY (/$bunfs/root/src/entrypoints/cli.js:492:77745)                                                                                                                                                     
   - j5 (/$bunfs/root/src/entrypoints/cli.js:492:76827)  
   - UY (/$bunfs/root/src/entrypoints/cli.js:492:76926)                                                                                                                                                     
   - j5 (/$bunfs/root/src/entrypoints/cli.js:492:76827)                                                                                                                                                   
   - UY (/$bunfs/root/src/entrypoints/cli.js:492:77745)                                                                                                                                                     
   - j5 (/$bunfs/root/src/entrypoints/cli.js:492:76827)                                                                                                                                                   
   - async <anonymous> (/$bunfs/root/src/entrypoints/cli.js:18808:11089)

Steps to Reproduce

Navigate to a directory with an existing Claude Code session
Run the following command:
claude --dangerously-skip-permissions -c
Reproducibility: 100%

Claude Model

Sonnet (default)

Is this a regression?

I don't know

Last Working Version

Unknown

Claude Code Version

2.1.119

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Warp

Additional Information

claude -c alone: works correctly
- claude --dangerously-skip-permissions alone: works correctly
- Crash only occurs when both flags are used together
Analysis of the minified source reveals the problematic call site:

// onSessionRestored (F1H) is undefined when F2q is initialized with enabled: false
let { onSessionRestored: F1H } = F2q({ enabled: false, ... })

useEffect(() => {
if (q && q.length > 0) {
F1H(q) // ← no null guard; TypeError when F1H is undefined }
}, [])

Suggested fix: Add a null guard at the call site — F1H?.(q) — or ensure F2q returns a no-op function when enabled: false.

Workaround: Use the flags separately until resolved.

claude -c # resume session (with permission prompts)
claude --dangerously-skip-permissions # new session (permissions bypassed)

extent analysis

TL;DR

The issue can be fixed by adding a null guard to the onSessionRestored callback call site or ensuring F2q returns a no-op function when enabled is false.

Guidance

The error occurs because onSessionRestored (F1H) is undefined when F2q is initialized with enabled: false, causing a TypeError when trying to call it.
To fix this, add a null guard at the call site: F1H?.(q).
Alternatively, ensure F2q returns a no-op function when enabled: false.
As a temporary workaround, use the flags separately: run claude -c to resume the session with permission prompts, and then run claude --dangerously-skip-permissions to start a new session with permissions bypassed.

Example

// Add a null guard at the call site
useEffect(() => {
  if (q && q.length > 0) {
    F1H?.(q) // Add a null guard to prevent TypeError
  }
}, [])

Notes

The provided analysis of the minified source code suggests that the issue is due to the missing null guard. However, without access to the full codebase, it's difficult to provide a more comprehensive solution.

Recommendation

Apply the workaround by using the flags separately until a permanent fix is implemented, as it allows users to still utilize the functionality of both flags, albeit in two separate steps.

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claude-code - 💡(How to fix) Fix [BUG] --dangerously-skip-permissions -c combination causes "F1H is not a function" crash on session restore [1 comments, 2 participants]

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claude-code - 💡(How to fix) Fix [BUG] --dangerously-skip-permissions -c combination causes "F1H is not a function" crash on session restore [1 comments, 2 participants]

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Error Message

Error Messages/Logs

Fix Action

Fix / Workaround

Code Example

Preflight Checklist

What's Wrong?

What Should Happen?

Error Messages/Logs

Steps to Reproduce

Claude Model

Is this a regression?

Last Working Version

Claude Code Version

Platform

Operating System

Terminal/Shell

Additional Information

extent analysis

TL;DR

Guidance

Example

Notes

Recommendation

Still need to ship something?

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