polyfill-service/polyfills/performance/now/config.json

A polyfill combinator

{
	"browsers": {
		"bb": "<10",
		"chrome": "<24",
		"ie": "<10",
		"ios_saf": "<8 || 8.1",
		"firefox": "<15",
		"opera": "<15",
		"op_mob": "<24",
		"safari": "<8",
		"firefox_mob": "<15"
	},
	"dependencies": [
		"Date.now"
	],
	"docs": "https://developer.mozilla.org/en-US/docs/Web/API/Performance/now"
}