Chrome扩展程序：require.js未加载模块

Question

我正在尝试加载sentiment module，在我的content.js中使用require.js解释in this doc：

require(['./require', '../node_modules/sentiment'], function (require) {
    //sentiment is now loaded.
    var sentiment = require('../node_modules/sentiment');
    if (sentiment) { 
        console.log('sentiment module loaded'); 
    }
});

没有控制台错误，所以我不完全确定为什么没有打印到控制台或如何解决此问题。

编辑： 这是我的清单：

{
  "manifest_version": 2,
  "name": "CA-extension",
  "version": "2.0",

  "page_action": {
    "default_popup": "views/popup.html",
    "default_title": "CA-extension"
  },

  "options_page": "views/options.html",

  "background": {
    "scripts": [
      "scripts/background.js"
    ]
  },

  "content_scripts": [
    {
      "matches": [
    "https://www.reddit.com/r/design_critiques/*"
      ],
      "run_at": "document_end",
      "js": [
        "scripts/require.js",
        "scripts/content.js"
      ],
      "css": [
        "stylesheets/content.css"
      ]
    }
  ],

  "permissions": [
    "storage",
    "tabs",
    "https://www.reddit.com/r/design_critiques/*"
  ],

  "web_accessible_resources": [
    "views/options.html",
    "https://www.reddit.com/r/design_critiques/*"
  ]
}