Legacy Web Proxy v3.4 - Free Worker mode

Usage:
/?url=https%3A%2F%2Fexample.com%2F
/?url64=aHR0cHM6Ly9leGFtcGxlLmNvbS8=

url64/urlb64 accept standard Base64 or URL-safe Base64, with or without padding. The url parameter also auto-detects Base64 when it is not already an absolute URL.

Heavy JS transpilation runs in the legacy browser, not on Cloudflare.