TypeError：无法读取未定义的Angularjs的属性“charAt”

Question

回到页面时我一直收到错误：

TypeError: Cannot read property 'charAt' of undefined
    at Object.Pb.$$parse (chrome-extension://jiflmhpffanabaldnciipnblmfjcjado/bower_components/angular/angular.min.js:86:140)
    at chrome-extension://jiflmhpffanabaldnciipnblmfjcjado/bower_components/angular/angular.min.js:90:313
    at k.$eval (chrome-extension://jiflmhpffanabaldnciipnblmfjcjado/bower_components/angular/angular.min.js:111:353)
    at k.$digest (chrome-extension://jiflmhpffanabaldnciipnblmfjcjado/bower_components/angular/angular.min.js:108:419)
    at chrome-extension://jiflmhpffanabaldnciipnblmfjcjado/bower_components/angular/angular.min.js:90:426
    at chrome-extension://jiflmhpffanabaldnciipnblmfjcjado/bower_components/angular/angular.min.js:38:222
    at Array.forEach (native)
    at q (chrome-extension://jiflmhpffanabaldnciipnblmfjcjado/bower_components/angular/angular.min.js:7:280)
    at f (chrome-extension://jiflmhpffanabaldnciipnblmfjcjado/bower_components/angular/angular.min.js:38:205)
    at chrome-extension://jiflmhpffanabaldnciipnblmfjcjado/bower_components/angular/angular.min.js:31:225 

目前正在创建一个chrome扩展程序，其中angularjs嵌入到页面中。我的content.js文件：

'use strict';
window.addEventListener("load", function() {
    if ( window.location.host.match(/(stack|gmail|shopify|magento|zendesk|desk.com|)/) ){
        // load the app from all the other dependancies
        var app = angular.module('joggle_ecommerce', [
                "joggle_ecommerce.controllers",
                "joggle_ecommerce.services",
                "joggle_ecommerce.directives"
            ])
        .config(function($locationProvider) {
            // $locationProvider.html5Mode(true).hashPrefix('!');
        })

        // find the html and add the angular needed directives
        var html = document.querySelector('html');
        html.setAttribute('ng-app', '');
        html.setAttribute('ng-csp', '');





        // bootstrap due to angular needing to load after page load
        angular.bootstrap(html, ['joggle_ecommerce'], []);
    }

})

当我删除angular.bootstrap(html, ['joggle_ecommerce'], []);时，这个问题不会持续存在，但据我所知，我需要在扩展名中加入bootstrap，因为在页面加载后需要加载角度。