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Service Worker là gì và các Caching Strategy phổ biến trong PWA hoạt động thế nào? · ORA·tech

Nâng cao Pro#performance

Service Worker là gì và các Caching Strategy phổ biến trong PWA hoạt động thế nào?

15 tháng 2, 2026

Tóm tắt nhanh

Service Worker là một background script đóng vai trò proxy mạng để kích hoạt khả năng offline cho PWA. Hiệu năng và trải nghiệm ngoại tuyến của ứng dụng phụ thuộc vào việc áp dụng đúng các chiến lược bộ nhớ đệm (Caching Strategies) như Cache-First, Network-First, hoặc Stale-While-Revalidate.

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