Use a web debugger (like Fiddler or the browser’s Inspect tool) to capture the login request sent to epicgames.com .
Developing a feature for a file named typically refers to creating or modifying a configuration (config) for OpenBullet Anomaly (a mod of the OpenBullet web-testing suite). Epicgames.com Full Capture.anom
Epic Games often uses advanced bot protection. You may need to implement support or solve Captchas using integrated services within the config. Use a web debugger (like Fiddler or the