Description
When using the Auto Policy mode and setting a proxy host with the HTTP protocol, the generated PAC script returns "HTTP host:port". However, "HTTP" is not a standard PAC return directive. According to the PAC specification (MDN) and Chromium's implementation, the correct directive for an HTTP proxy is "PROXY host:port".
This causes the proxy to silently fail or be ignored by Chrome and other standard browsers.

Steps to Reproduce

1. Create a proxy using the HTTP protocol.
2. Assign this proxy in an Auto Policy.
3. Set the Auto Policy as active.
4. The generated PAC script uses return "HTTP <ip>:<port>"; which Chrome does not recognize.

Expected Behavior
The PAC script should return "PROXY <ip>:<port>"; for HTTP proxies.

Environment

• Browser: Chrome / Edge / Firefox
• Extension Version: 2.0.6 (latest)