1. You’ve Experienced the "It Works in Chrome" Fallacy
You aren’t a real frontend engineer until you’ve spent six hours debugging a layout issue that only appears on a specific version of Safari, or realized that your beautiful, modern CSS grid breaks entirely on a browser version your client refuses to sunset.
The Lesson: You stop fighting the browser and start building resilient, progressive enhancements.
2. You’ve Cried Over a Z-Index Issue
There is a unique type of pain that comes from a modal that refuses to stay on top, or a dropdown hiding behind a container you didn't even know existed.
