Fixes #5603

This PR adds support for customising the IP address that the inspector server listens on via a new --inspector-ip CLI flag and dev.inspector_ip configuration option.

Problem

Previously, the inspector was hardcoded to listen only on 127.0.0.1, which prevented debugging in Docker containers and other environments where external access is needed.

Solution

• Added --inspector-ip CLI flag to wrangler dev
• Added dev.inspector_ip configuration option in wrangler.json/wrangler.toml
• Updated the inspector proxy controller to accept and use a custom hostname
• Added comprehensive tests for the new functionality
• Default remains 127.0.0.1 for security

Example Usage

# CLI flag
wrangler dev --inspector-ip 0.0.0.0

// wrangler.json
{
  "dev": {
    "inspector_ip": "0.0.0.0"
  }
}

• Tests
  • Tests included/updated
  • Automated tests not possible - manual testing has been completed as follows:
  • Additional testing not necessary because:
• Public documentation
  • Cloudflare docs PR(s):
  • Documentation not necessary because: CLI flag and config option are self-documenting, and the changeset includes usage examples