Privacy Policy

1. Information Collection

This extension only collects the following necessary information:

• Cookie data from websites you specify for synchronization

• Basic extension configuration information

• Account information for authentication

2. Information Usage

We use the collected information only for:

• Implementing cookie synchronization across browsers

• Providing technical support and troubleshooting

• Improving our service quality

3. Data Security

We take the following measures to protect your data:

• All data transmission uses HTTPS encryption

• Cookie data is encrypted during transmission and storage

• Regular security audits and updates

4. User Control

You have the following rights:

• View and delete synchronized cookie data at any time

• Modify synchronization settings and configurations

• Disable or uninstall the extension

5. Data Sharing

We do not share your data with any third parties unless:

• We have your explicit authorization

• We are required to do so by law

6. Contact Us

If you have any questions about our privacy policy, please contact us at:

Email: gt@kainy.cn

7. VPN Functionality

The extension uses a VPN configuration to intercept and inspect HTTP/HTTPS traffic for debugging and development purposes.

Information Collected

Through the VPN functionality, the app collects the following information:

• Network request and response data (HTTP/HTTPS traffic) that passes through the VPN

• Domain names and URLs of websites and services accessed through the VPN

• Request headers and response data for analysis and debugging

• Connection metadata (IP addresses, ports) necessary for the proper functioning of the proxy service

The app does NOT collect or store:

• Personal user identification information

• Passwords or authentication credentials

• Browsing history beyond the current session (unless explicitly saved by the user)

• Device information beyond what's necessary for VPN operation

• Location data or other sensitive personal information

Purposes of Collection

The collected information is used exclusively for the following purposes:

• Traffic Analysis and Debugging: To help developers inspect, analyze, and debug HTTP/HTTPS requests and responses during app development

• Request Modification: To allow users to rewrite or modify requests for testing and development purposes

• Domain Filtering: To selectively capture only traffic from specific domains as configured by the user

• Script Execution: To enable users to run custom JavaScript scripts to process requests or responses for testing

• Local History: To provide a temporary record of captured traffic for analysis within the current debugging session

All data processing happens locally on the user's device. The VPN functionality is designed as a development tool to help users debug their own applications and network traffic.

Technical Implementation

The extension uses NEVPNManager APIs to create a local VPN connection that routes network traffic through a local proxy server:

• Purpose: We implement a local VPN tunnel to route device traffic through our local proxy (running on 127.0.0.1) to enable features like request filtering, monitoring, and modification for debugging and development purposes.

• Implementation Details:

  • We use NETunnelProviderManager to create and manage a VPN configuration

  • The VPN is configured as a local tunnel

  • We don't connect to any external VPN servers - all traffic is processed locally on the device

  • The VPN configuration includes parameters for the local proxy host (typically 127.0.0.1) and port (9099)

• User Control:

  • Users can enable/disable the VPN connection through our app interface

  • The VPN status is monitored and displayed to users (connected, connecting, disconnected)

  • Users can modify proxy settings as needed for their development workflow

Data Sharing

The data collected through the VPN is not shared with any third parties. All traffic data is:

• Processed locally on the user's device

• Only stored temporarily in the app's local storage

• Only accessible to the user of the app

• Not transmitted to external servers except when explicitly initiated by the user (e.g., when forwarding traffic to another device for debugging)

The app includes user authentication functionality, but this is solely for user account management and does not involve sharing the VPN-captured traffic data with third parties.

If users choose to export their captured traffic history (in HAR format), this exported data remains under their control and is not automatically uploaded to any server.

8. Policy Updates

We may update this privacy policy from time to time. Any significant changes will be notified through the extension. Continued use of our services indicates your acceptance of the new privacy policy.