workbox-cdn/workbox/workbox-navigation-preload.prod.js

this.workbox=this.workbox||{},this.workbox.navigationPreload=function(t){"use strict";try{self["workbox:navigation-preload:5.1.4"]&&_()}catch(t){}function e(){return Boolean(self.registration&&self.registration.navigationPreload)}return t.disable=function(){e()&&self.addEventListener("activate",t=>{t.waitUntil(self.registration.navigationPreload.disable().then(()=>{}))})},t.enable=function(t){e()&&self.addEventListener("activate",e=>{e.waitUntil(self.registration.navigationPreload.enable().then(()=>{t&&self.registration.navigationPreload.setHeaderValue(t)}))})},t.isSupported=e,t}({});