// 把必要的 window 替换为自定义的 _window
var _window = {}
var navigator = {
	userAgent: "mimc-uniapp/1.0",
	appName: "xiaomi",
	appVersion: "1.0"
}
_window.navigator = navigator

// closure-library/closure/goog/base.js 添加 atob/btoa 方法
if(goog.global == undefined) {
	goog.global = {}
	var chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
	if(goog.global.atob == undefined) {
		goog.global.atob = function(input) {
			// ...
			return output;
		}

	}
	
	if(goog.global.btoa == undefined) {
		goog.global.btoa = function(input){
			// ...
			return output;
		}

	}

}