Configurable Url Allowlist With Pattern Matching

** - Secure fetch to prevent access to local resources

Unique: Supports multiple pattern matching syntaxes (exact, wildcard, regex) in a single allowlist, allowing operators to express policies at different levels of specificity without requiring separate configuration files

vs others: More flexible than hardcoded domain lists because it supports wildcard and regex patterns, enabling operators to express complex policies like 'allow any subdomain of example.com except admin.example.com' without code changes