[Bug] Claude in Chrome - Login button flickers/loops repeatedly, unable to use Claude

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?

When trying to use Claude in Chrome browser, the interface shows a "Login" button that continuously flickers/blinks in a loop. The button keeps appearing and disappearing repeatedly, making it impossible to log in or use Claude at all.

Observed behavior:

• Open Claude in Chrome browser
• The "Login" button flickers/blinks repeatedly in a loop
• Unable to click the login button or proceed to use Claude
• The interface is stuck in this login flickering state indefinitely

What Should Happen?

Claude in Chrome should load properly and allow the user to log in successfully without any flickering or looping of the Login button. The user should be able to authenticate and use Claude normally.

Error Messages/Logs

No specific error message displayed in the UI. The Login button flickers/blinks in a loop continuously. The page does not load the main Claude interface.

Steps to Reproduce

1. Open Google Chrome browser
2. Navigate to Claude (claude.ai) or open the Claude Chrome Extension
3. Observe the Login button on the page
4. The Login button starts flickering/blinking repeatedly in a loop
5. Attempting to click the Login button does not work due to continuous flickering
6. Unable to proceed to use Claude at all

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

Claude 1.0.70 Claude in Chrome (Beta)

Platform

Other

Operating System

Windows

Terminal/Shell

Other

Additional Information

_No response_