https://www.calgaryfolkfest.com/sw.js

1!function(){"use strict";let e,t,a,r,s;let n=(e,...t)=>{let a=e;return t.length>0&&(a+=` :: ${JSON.stringify(t)}`),a};class i extends Error{details;constructor(e,t){super(n(e,t)),this.name=e,this.details=t}}let o=e=>new URL(String(e),location.href).href.replace(RegExp(`^${location.origin}`),""),l={googleAnalytics:"googleAnalytics",precache:"precache-v2",prefix:"serwist",runtime:"runtime",suffix:"undefined"!=typeof registration?registration.scope:""},c=e=>[l.prefix,e,l.suffix].filter(e=>e&&e.length>0).join("-"),h=e=>{for(let t of Object.keys(l))e(t)},u=e=>{h(t=>{let a=e[t];"string"==typeof a&&(l[t]=a)})},d=e=>e||c(l.googleAnalytics),f=e=>e||c(l.precache),y=e=>e||c(l.runtime);class w{promise;resolve;reject;constructor(){this.promise=new Promise((e,t)=>{this.resolve=e,this.reject=t})}}function p(e,t){let a=new URL(e);for(let e of t)a.searchParams.delete(e);return a.href}async function g(e,t,a,r){let s=p(t.url,a);if(t.url===s)return e.match(t,r);let n={...r,ignoreSearch:!0};for(let i 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1static async fromRequest(e){let t={url:e.url,headers:{}};for(let a of("GET"!==e.method&&(t.body=await e.clone().arrayBuffer()),e.headers.forEach((e,a)=>{t.headers[a]=e}),eo))void 0!==e[a]&&(t[a]=e[a]);return new el(t)}constructor(e){"navigate"===e.mode&&(e.mode="same-origin"),this._requestData=e}toObject(){let e=Object.assign({},this._requestData);return e.headers=Object.assign({},this._requestData.headers),e.body&&(e.body=e.body.slice(0)),e}toRequest(){return new Request(this._requestData.url,this._requestData)}clone(){return new el(this.toObject())}}let ec="serwist-background-sync",eh=new Set,eu=e=>{let t={request:new el(e.requestData).toRequest(),timestamp:e.timestamp};return e.metadata&&(t.metadata=e.metadata),t};class ed{_name;_onSync;_maxRetentionTime;_queueStore;_forceSyncFallback;_syncInProgress=!1;_requestsAddedDuringSync=!1;constructor(e,{forceSyncFallback:t,onSync:a,maxRetentionTime:r}={}){if(eh.has(e))throw new i("duplicate-queue-name",{name:e});eh.add(e),this._name=e,this._onSync=a||this.replayRequests,this._maxRetentionTime=r||10080,this._forceSyncFallback=!!t,this._queueStore=new ei(this._name),this._addSyncListener()}get name(){return this._name}async pushRequest(e){await this._addRequest(e,"push")}async unshiftRequest(e){await this._addRequest(e,"unshift")}async popRequest(){return this._removeRequest("pop")}async shiftRequest(){return this._removeRequest("shift")}async getAll(){let e=await this._queueStore.getAll(),t=Date.now(),a=[];for(let r of e){let e=6e4*this._maxRetentionTime;t-r.timestamp>e?await this._queueStore.deleteEntry(r.id):a.push(eu(r))}return a}async size(){return await this._queueStore.size()}async _addRequest({request:e,metadata:t,timestamp:a=Date.now()}

1,r){let s={requestData:(await el.fromRequest(e.clone())).toObject(),timestamp:a};switch(t&&(s.metadata=t),r){case"push":await this._queueStore.pushEntry(s);break;case"unshift":await this._queueStore.unshiftEntry(s)}this._syncInProgress?this._requestsAddedDuringSync=!0:await this.registerSync()}async _removeRequest(e){let t;let a=Date.now();switch(e){case"pop":t=await this._queueStore.popEntry();break;case"shift":t=await this._queueStore.shiftEntry()}if(t){let r=6e4*this._maxRetentionTime;return a-t.timestamp>r?this._removeRequest(e):eu(t)}}async replayRequests(){let e;for(;e=await this.shiftRequest();)try{await fetch(e.request.clone())}catch(t){throw await this.unshiftRequest(e),new i("queue-replay-failed",{name:this._name})}}async registerSync(){if("sync"in self.registration&&!this._forceSyncFallback)try{await self.registration.sync.register(`${ec}:${this._name}`)}catch(e){}}_addSyncListener(){"sync"in self.registration&&!this._forceSyncFallback?self.addEventListener("sync",e=>{if(e.tag===`${ec}:${this._name}`){let t=async()=>{let t;this._syncInProgress=!0;try{await this._onSync({queue:this})}catch(e){if(e instanceof Error)throw e}finally{this._requestsAddedDuringSync&&!(t&&!e.lastChance)&&await this.registerSync(),this._syncInProgress=!1,this._requestsAddedDuringSync=!1}};e.waitUntil(t())}}):this._onSync({queue:this})}static get _queueNames(){return eh}}class ef{_queue;constructor(e,t){this._queue=new ed(e,t)}async fetchDidFail({request:e}){await this._queue.pushRequest({request:e})}}let ey=async(t,a)=>{let r=null;if(t.url&&(r=new URL(t.url).origin),r!==self.location.origin)throw new i("cross-origin-copy-response",{origin:r});let s=t.clone(),n={headers:new Headers(s.headers),status:s.status,statusText:s.statusText},o=a?a(n):n,l=!function(){if(void 0===e){let t=new Response("");if("body"in t)try{new Response(t.body),e=!0}catch(t){e=!1}e=!1}return e}()?await s.blob():s.body;return new 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i("missing-precache-entry",{cacheName:this.cacheName,url:e.url});return a}async _handleInstall(e,t){this._useDefaultCacheabilityPluginIfNeeded();let a=await t.fetch(e);if(!await t.cachePut(e,a.clone()))throw new i("bad-precaching-response",{url:e.url,status:a.status});return a}_useDefaultCacheabilityPluginIfNeeded(){let e=null,t=0;for(let[a,r]of this.plugins.entries())r!==ew.copyRedirectedCacheableResponsesPlugin&&(r===ew.defaultPrecacheCacheabilityPlugin&&(e=a),r.cacheWillUpdate&&t++);0===t?this.plugins.push(ew.defaultPrecacheCacheabilityPlugin):t>1&&null!==e&&this.plugins.splice(e,1)}}let ep=()=>!!self.registration?.navigationPreload,eg=e=>{ep()&&self.addEventListener("activate",t=>{t.waitUntil(self.registration.navigationPreload.enable().then(()=>{e&&self.registration.navigationPreload.setHeaderValue(e)}))})},em=e=>{u(e)};class 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