[{"data":1,"prerenderedAt":65},["ShallowReactive",2],{"\u002Fglossary\u002Fnon-persistent-data-store-wkwebsitedatastorenonpersistent":3,"\u002Fglossary\u002Fnon-persistent-data-store-wkwebsitedatastorenonpersistent:related":48},{"id":4,"title":5,"author":6,"authorImage":7,"body":8,"category":32,"date":33,"description":34,"draft":35,"extension":36,"letter":37,"meta":38,"navigation":39,"path":40,"readTime":41,"related":42,"seo":43,"stem":45,"term":46,"__hash__":47},"glossary\u002Fglossary\u002Fnon-persistent-data-store-wkwebsitedatastorenonpersistent.md","Non-Persistent Data Store (WKWebsiteDataStore.nonpersistent())","Fabian Krumbholz","\u002Fimages\u002Fauthors\u002Ffabian-krumbholz.webp",{"type":9,"value":10,"toc":28},"minimark",[11],[12,13,14,15,19,20,23,24,27],"p",{},"This is a specific technical configuration required to enable the ",[16,17,18],"strong",{},"Service Worker"," API within an iOS ",[16,21,22],{},"WKWebView",". The app developer must set this property on the ",[16,25,26],{},"WKWebViewConfiguration",". It tells the in-app browser to use a data store that allows the Service Worker technology to function as it does in a standard desktop browser, which is a prerequisite for Speed Kit to operate inside the app.",{"title":29,"searchDepth":30,"depth":30,"links":31},"",2,[],null,"April 8, 2026","This is a specific technical configuration required to enable the Service Worker API within an iOS WKWebView. The app developer must set this property on the WKWebViewConfiguration.",false,"md","N",{},true,"\u002Fglossary\u002Fnon-persistent-data-store-wkwebsitedatastorenonpersistent","1 min read",[],{"title":44,"description":34},"Non-Persistent Data Store (WKWebsiteDataStore.nonpersistent()): Definition | Web Performance Glossary","glossary\u002Fnon-persistent-data-store-wkwebsitedatastorenonpersistent","Non-Persistent Data Store","TsN6mp1uI14k4Yp3g2TsvgRyFpyvhelDsZ47eOpTc6k",[49,53,57,61],{"path":50,"title":51,"description":52,"letter":37},"\u002Fglossary\u002Fnative-app-logic-interference","Native App Logic Interference","This is a potential issue that can occur when Speed Kit is used to accelerate a WKWebView inside a native mobile application.",{"path":54,"title":55,"description":56,"letter":37},"\u002Fglossary\u002Fnavigation-type","Navigation Type","Navigation Type is a RUM metric that indicates how a user arrived at a page. Common types include Maps (e.g., clicking a link), reload, and back_forward (using the browser's back\u002Fforward buttons).",{"path":58,"title":59,"description":60,"letter":37},"\u002Fglossary\u002Fnetwork","Network","Network, in the context of web performance, refers to the series of networks (including the local network, internet service providers, and backbone networks) that connect a user's browser to a website's server.",{"path":62,"title":63,"description":64,"letter":37},"\u002Fglossary\u002Fnetwork-time","Network Time","Network Time is the \"travel time\" it takes for data to move between a user's browser and a website's server. This is influenced by factors like the physical distance between the user and the server…",1787756715237]