Research Joyn scripts obfuscation
3 min readMay 4, 2020
Joyn (previously 7TV) is German “Netflix” which has films, TV series and live TV.
Did you hear anything about code obfuscation? Let’s have a look at Joyn video player and how they use that in production.
Scripts and modules
Let’s open any TV series and see what scripts are in Network panel of DevTools. There are scripts which are loaded from static.t1p-vod-playout-prod.aws.route71.net
ad-tracker.min.js
The module name is @vod/ad-tracker
It tracks ad events based on your advertising playback.
playback-source-fetcher.min.js
The module name is @vod/playback-source-fetcher
It requests https://static.t1p-vod-playout-prod.aws.route71.net/playback-source-fetcher/config/psf.json with server config.
