View-sourcehttps M.facebook.com Home.php __link__ 🎉

The .php extension in the URL is a nostalgic nod to Facebook’s origins. Today, Facebook’s backend is a custom runtime called HHVM (HipHop Virtual Machine) that executes Hack language code. The route /home.php is likely a legacy alias maintained for backward compatibility with older bookmarks and external links.

Developers building social media dashboards or analytics tools might need to understand the HTML structure. The mobile version ( m. ) is simpler and more predictable than the desktop version. Viewing the source reveals: View-sourcehttps M.facebook.com Home.php

But it didn't show the code. It showed a black screen with one single line of red text, rendered not in HTML, but in raw, plain text that seemed to burn into his retinas. rendered not in HTML