HTML StandardFirefox3.5+Safari4+Chrome4+Opera10.6+Edge79+Edge (Legacy)12+Internet Explorer10+Firefox Android4+Safari iOS3.2+Chrome Android18+WebView Android4+Samsung Internet1.0+Opera Android11+caniuse.com table This feature is in the process of being removed from the web platform. (This is a long process that takes many years.) Using any of the offline web application features at this time is highly discourag
