Javascript Chrome扩展插件'；s的内容脚本未被注入任何网页

我正在做一个简单的chrome扩展，我试图在这些特定的网页中包含一个内容脚本。但问题是他们没有被纳入网站。我使用Chrome的开发者工具进行了检查。 然后我将match_URL设置为所有页面，但它们仍然没有被包括在内

下面是manifest.json：

{
  "manifest_version": 2,

  "name": "TestExten",
  "description": "Test description.",
  "version": "1.0",
  "browser_action": {
   "default_icon": "icon.png",
   "default_popup": "popup.html"
  },
  "content_scripts": [
    {
      "matches": ["http://*/*", "https://*/*"],
      "run_at": "document.end",
      "js": ["content.js"]
    }
  ],
  "permissions": [
    "tabs",
    "http://*/", "https://*/",
    "cookies"
  ],
}

alert("loaded");
chrome.runtime.onMessage.addListener(function(request, sender, sendResponse) {
     alert("received message");
});

以及content.js：

{
  "manifest_version": 2,

  "name": "TestExten",
  "description": "Test description.",
  "version": "1.0",
  "browser_action": {
   "default_icon": "icon.png",
   "default_popup": "popup.html"
  },
  "content_scripts": [
    {
      "matches": ["http://*/*", "https://*/*"],
      "run_at": "document.end",
      "js": ["content.js"]
    }
  ],
  "permissions": [
    "tabs",
    "http://*/", "https://*/",
    "cookies"
  ],
}

alert("loaded");
chrome.runtime.onMessage.addListener(function(request, sender, sendResponse) {
     alert("received message");
});

这里出了什么问题？

看看这里：

参数

run\u at

接受

document\u end

，而不是

document.end

。因此，您的清单应该如下所示：

{
  "manifest_version": 2,

  "name": "TestExten",
  "description": "Test description.",
  "version": "1.0",
  "browser_action": {
   "default_icon": "icon.png",
   "default_popup": "popup.html"
  },
  "content_scripts": [
    {
      "matches": ["http://*/*", "https://*/*"],
      "run_at": "document_end",
      "js": ["content.js"]
    }
  ],
  "permissions": [
    "tabs",
    "http://*/", "https://*/",
    "cookies"
  ],
}

---

是否确实已安装并启用扩展？它是

document\u end

（而不是

document.end

）