If you still wish to experiment with a local HTML file (for offline use), you would need to:
He grabbed his laptop and prepared for the operation.
However, the URL you wrote seems incomplete:
This was the moment. The auto_index.html wasn't just serving a file; it was exploiting a vulnerability in the way the PS3 browser handled memory. It was tricking the console into writing custom code where only Sony’s signature was supposed to exist.
for beginners. The official online method at ps3xploit.com is safer and easier.