5 lines
1.9 KiB
JavaScript
5 lines
1.9 KiB
JavaScript
(()=>{"use strict";const{AbortController:e,FileReader:t,TextDecoder:s,atob:n,btoa:o,clearInterval:r,clearTimeout:a,crypto:c,decodeURIComponent:i,encodeURIComponent:l,escape:u,location:h,setInterval:d,setTimeout:p,unescape:f}=self;let{fetch:w}=self;h.origin,h.host;const{addEventListener:g,removeEventListener:m}=self,{DOMParser:W,Notification:v,Image:y,Worker:x,alert:S,confirm:T,document:b,screen:R,webkitNotifications:k}=self;let D;try{D=self.localStorage}catch(e){}let{XMLHttpRequest:I}=self
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;const{clients:L}=self;self.addEventListener("install",(()=>{console.log("SW: started"),self.skipWaiting().catch((e=>console.warn(e)))}));const q="x-sw-cache-timestamp";self.addEventListener("fetch",(e=>{const t=e.request.url,s=caches.match(t).then((async s=>{let n;if(s&&(!(n=s.headers.get(q))||Date.now()<Number(n)+6048e5))return console.log(`SW: delivering cached response for ${t}`),s
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;if(!t.startsWith("http")||!(t.startsWith("https://www.google.com/s2/favicons")||t.startsWith("https://icons.duckduckgo.com/ip2/")||t.endsWith("favicon.ico")))return w(e.request);try{const s=await w(e.request);return(async(e,t)=>{console.log(`SW: caching ${e}`);const s=await caches.open("dynamic"),n=await(async(e,t)=>{const s=t?t((()=>{const t=new Headers;for(const[s,n]of e.headers.entries())t.append(s,n);return t})()):e.headers,n=await e.blob();return new Response(n,{status:e.status,
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statusText:e.statusText,headers:s})})(t,(e=>(e.set(q,Date.now().toString()),e)));return s.put(e,n.clone()).catch((e=>console.warn(e))),n})(t,s)}catch(e){return(async(e,t)=>{console.log(`SW: caching error response for ${e}`);const s=await caches.open("dynamic"),n=new Response(null,{status:500,statusText:t||"internal error",headers:{[q]:Date.now().toString()}});return s.put(e,n.clone()).catch((e=>console.warn(e))),n})(t,e.message)}})).catch((e=>{const t=e.message||e.statusText||"unknown error"
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;return console.log(`SW: unexpected error ${t}`),new Response(null,{status:500,statusText:t})}));e.respondWith(s)}))})(); |