{
  "slug": "service-worker",
  "name": "Service Workers",
  "category": "Capabilities",
  "summary": "The programmable network proxy that powers offline, caching, and push for PWAs.",
  "name_zh": "Service Worker",
  "summary_zh": "可编程的网络代理，为 PWA 提供离线、缓存与推送能力。",
  "spec_url": "https://w3c.github.io/ServiceWorker/",
  "mdn_url": "https://developer.mozilla.org/en-US/docs/Web/API/Service_Worker_API",
  "confidence": "medium",
  "verified_at": "2026-06-24",
  "support": [
    {
      "target": "Chrome (Android)",
      "os": "Android",
      "browser": "chrome",
      "engine": "blink",
      "status": "yes",
      "version_added": "40",
      "version_full": "40",
      "applicable": true,
      "notes": [],
      "source": "https://developer.mozilla.org/en-US/docs/Web/API/Service_Worker_API",
      "verified_at": "2026-06-24",
      "confidence": "medium"
    },
    {
      "target": "Chrome (Desktop)",
      "os": "Desktop",
      "browser": "chrome",
      "engine": "blink",
      "status": "yes",
      "version_added": "40",
      "version_full": "40",
      "applicable": true,
      "notes": [],
      "source": "https://developer.mozilla.org/en-US/docs/Web/API/Service_Worker_API",
      "verified_at": "2026-06-24",
      "confidence": "medium"
    },
    {
      "target": "Edge (Desktop)",
      "os": "Desktop",
      "browser": "edge",
      "engine": "blink",
      "status": "yes",
      "version_added": "17",
      "version_full": "17",
      "applicable": true,
      "notes": [],
      "source": "https://developer.mozilla.org/en-US/docs/Web/API/Service_Worker_API",
      "verified_at": "2026-06-24",
      "confidence": "medium"
    },
    {
      "target": "Safari (iOS)",
      "os": "iOS",
      "browser": "safari",
      "engine": "webkit",
      "status": "yes",
      "version_added": "11.3",
      "version_full": "11.3",
      "applicable": true,
      "notes": [
        {
          "text": "Storage may be evicted after prolonged non-use.",
          "text_zh": "长期不使用后存储可能被逐出。"
        }
      ],
      "source": "https://developer.mozilla.org/en-US/docs/Web/API/Service_Worker_API",
      "verified_at": "2026-06-24",
      "confidence": "medium"
    },
    {
      "target": "Safari (macOS)",
      "os": "macOS",
      "browser": "safari",
      "engine": "webkit",
      "status": "yes",
      "version_added": "11.1",
      "version_full": "11.1",
      "applicable": true,
      "notes": [],
      "source": "https://developer.mozilla.org/en-US/docs/Web/API/Service_Worker_API",
      "verified_at": "2026-06-24",
      "confidence": "medium"
    },
    {
      "target": "Firefox (Desktop)",
      "os": "Desktop",
      "browser": "firefox",
      "engine": "gecko",
      "status": "yes",
      "version_added": "44",
      "version_full": "44",
      "applicable": true,
      "notes": [],
      "source": "https://developer.mozilla.org/en-US/docs/Web/API/Service_Worker_API",
      "verified_at": "2026-06-24",
      "confidence": "medium"
    },
    {
      "target": "Samsung Internet",
      "os": "Android",
      "browser": "samsung",
      "engine": "blink",
      "status": "yes",
      "version_added": "4.0",
      "version_full": "4.0",
      "applicable": true,
      "notes": [],
      "source": "https://developer.mozilla.org/en-US/docs/Web/API/Service_Worker_API",
      "verified_at": "2026-06-24",
      "confidence": "medium"
    }
  ],
  "biz_compat": [],
  "generated_by": "OpenPWA compatibility explorer",
  "licence": "CC BY 4.0",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "attribution": "OpenPWA — https://openpwa.net",
  "attribution_html": "<a href=\"https://openpwa.net\">OpenPWA</a>, <a href=\"https://creativecommons.org/licenses/by/4.0/\">CC BY 4.0</a>"
}