I'm converting a Chrome Extension to a Safari Web Extension, I found it's not easy to get favicon of current tab/url natively. The tab object in Safari doesn't have favIconUrl. { 	"id": 121, 	"index": 6, 	"active": true, 	"width": 1324, 	"audible": false, 	"url": "https://github.com/", 	"mutedInfo": { 		"muted": false 	}, 	"windowId": 2, 	"title": "GitHub", 	"incognito": false, 	"pinned": false, 	"height": 935, 	"highlighted": true, 	"status": "complete" } 		 2. I didn't find Safari has similar thing like chrome://favicon 3. I found Safari's favicon caches in ~/Library/Safari/Favicon Cache/favicons but have no idea how to use them in Safari Web Extension.