Compatibility Testing

<default_to_action> When validating cross-browser/platform compatibility:

1. DEFINE browser matrix (cover 95%+ of users)
2. TEST responsive breakpoints (mobile, tablet, desktop)
3. RUN in parallel across browsers/devices
4. USE cloud services for device coverage (BrowserStack, Sauce Labs)
5. COMPARE visual screenshots across platforms

Quick Compatibility Checklist:

• Chrome, Firefox, Safari, Edge (latest + N-1)
• Mobile Safari (iOS), Mobile Chrome (Android)
• Screen sizes: 320px, 768px, 1920px
• Test on actual target devices for critical flows