极光加速器是干嘛的

"); } else { win._boomrl = function() { bootstrap(); }; if (win.addEventListener) { win.addEventListener("load", win._boomrl, false); } else if (win.attachEvent) { win.attachEvent("onload", win._boomrl); } } doc.close(); } var link = document.createElement("link"); if (link.relList && typeof link.relList.supports === "function" && link.relList.supports("preload") && ("as" in link)) { window.BOOMR.snippetMethod = "p"; link.href = window.BOOMR.url; link.rel = "preload"; link.as = "script"; link.addEventListener("load", promote); link.addEventListener("error", function() { iframeLoader(true); }); setTimeout(function() { if (!promoted) { iframeLoader(true); } }, LOADER_TIMEOUT); BOOMR_lstart = new Date().getTime(); parentNode.appendChild(link); } else { iframeLoader(false); } function boomerangSaveLoadTime(e) { window.BOOMR_onload = (e && e.timeStamp) || new Date().getTime(); } if (window.addEventListener) { window.addEventListener("load", boomerangSaveLoadTime, false); } else if (window.attachEvent) { window.attachEvent("onload", boomerangSaveLoadTime); } if (document.addEventListener) { document.addEventListener("onBoomerangLoaded", function(e) { e.detail.BOOMR.init({ producer_url: "http://monorail-edge.shopifysvc.com/v1/produce", ResourceTiming: { enabled: true, trackedResourceTypes: ["script", "img", "css"] }, }); e.detail.BOOMR.t_end = new Date().getTime(); }); } else if (document.attachEvent) { document.attachEvent("onpropertychange", function(e) { if (!e) e=event; if (e.propertyName === "onBoomerangLoaded") { e.detail.BOOMR.init({ producer_url: "http://monorail-edge.shopifysvc.com/v1/produce", ResourceTiming: { enabled: true, trackedResourceTypes: ["script", "img", "css"] }, }); e.detail.BOOMR.t_end = new Date().getTime(); } }); } })(); if (!isDuplicatedThankYouPageView()) { setCookieIfThankYouPage(); window.ShopifyAnalytics.lib.page( null, {"pageType":"home"} ); } }); var eventsListenerScript = document.createElement('script'); eventsListenerScript.async = true; eventsListenerScript.src = "//cdn.shopify.com/s/assets/shop_events_listener-2632023fb2795bd6668b6fbae05b661baba07afb3d62048f023763eca3cd96e3.js"; document.getElementsByTagName('head')[0].appendChild(eventsListenerScript); })();