~upd~ - View-sourcehttps M.facebook.com Home.php

In the early days of Facebook (circa 2004-2010), pages used .php extensions explicitly, indicating the use of PHP as a server-side scripting language. While modern Facebook uses a compiled version of PHP called Hack and its own runtime (HHVM), the legacy route home.php persists. This file is the entry point for a logged-in user’s news feed.

This is a story about what happens when you look too closely at the machinery. View-sourcehttps M.facebook.com Home.php

: Technical users may inspect the source to verify where their data is being sent or to identify potential phishing attempts. In the early days of Facebook (circa 2004-2010), pages used

The screen flickered one last time. A new comment block appeared at the very pages used .php extensions explicitly