Penar Musaraj bd1616d3d9 Add offline route and service worker to fix Android app install banner (#5217) ... * set up static offline.html route and service worker for Android Web App Banner * add viewport meta tag to offline view for android app banner * add i18n support for offline.html pages, cleanup * fix html syntax, add page title, remove license for service-worker.js		2017-10-31 10:46:48 +11:00
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offline.html.erb