pxt-core/built/web/simulatorserviceworker.js

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function initSimulatorServiceWorker(){const e="@relprefix@".replace("---","").replace(/^\//,""),t=-1===e.indexOf("/"),r="makecode-sim;"+e+";@pxtRelId@",n=["@simUrl@","/cdn/pxtsim.js","/sim/sim.js"].map(e=>e.trim()).filter(e=>!!e&&0!==e.indexOf("@"));self.setSimulatorWorkerOptions=e=>{var t;e&&Array.isArray(e.urls)&&n.push(...(t=e.urls,s(t.map(e=>e.trim()).filter(e=>!!e))))};let i=!1;function s(e){const t=[];for(const r of e)-1===t.indexOf(r)&&t.push(r);return t}self.addEventListener("install",e=>{if(t){i=!0;try{importScripts("@simworkerconfigUrl@")}catch(e){console.log("Failed to load target service worker config")}console.log("Installing service worker..."),e.waitUntil(caches.open(r).then(e=>(console.log("Opened cache"),e.addAll(s(n)))).then(()=>self.skipWaiting()))}else console.log("Skipping service worker install for unnamed endpoint")}),self.addEventListener("activate",n=>{t?(console.log("Activating service worker..."),n.waitUntil(caches.keys().then(t=>{const n=t.filter(t=>{const n=function(e){const t=e.split(";");return 3!==t.length?null:t[1]}(t);return null===n||n===e&&t!==r});return Promise.all(n.map(e=>caches.delete(e)))}).then(()=>i?(i=!1,function(){const t=self;return t.clients.claim().then(()=>t.clients.matchAll()).then(t=>{t.forEach(t=>t.postMessage({type:"serviceworker",state:"activated",ref:e}))})}()):Promise.resolve()))):console.log("Skipping service worker activate for unnamed endpoint")}),self.addEventListener("fetch",e=>{e.respondWith(caches.match(e.request).then(t=>t||fetch(e.request)))})}initSimulatorServiceWorker();