chrome extension无法获取window对象

雨声不在2023-09-08 9:49

上一篇博客之后，我要修改的网页有一个新改版，然后有个数据存在了window中，我直接在js中使用window.xxx发现无法获取。所以有本文。

https://juejin.cn/post/7145749643316428830

https://onelinerhub.com/chrome-extension/window_object#:\~:text=chrome-extension How to access or modify window object,%3D 'console.log (window)%3B'%3B (document.head||document.documentElement).appendChild (script)%3B ctrl %2B c

搜了一下发现有两种方法，如上，大概就是：

方法1

javascript 复制代码

var script = document.createElement('script');
script.textContent = 'console.log(window);';
(document.head||document.documentElement).appendChild(script);

出现报错：

bash 复制代码

extensions_version_page.js:6 Refused to execute inline script because it violates the following Content Security Policy directive: "script-src 'self' 'wasm-unsafe-eval' 'inline-speculation-rules' http://localhost:* http://127.0.0.1:*". Either the 'unsafe-inline' keyword, a hash ('sha256-XnQUOdrKm+cYqdkT/ljnkhjaYaitt2Xh3uRQxH/M9z0='), or a nonce ('nonce-...') is required to enable inline execution.

方法2

json 复制代码

{
  "name": "yeshen_extresion",
  "version": "1.0",
  "description": "yeshen test",
  "manifest_version": 3,
  "web_accessible_resource": [
    {
      "resources": [
        "assets/*",
        "js/contentScript.js"
      ]
    }
  ],
  "content_scripts": [
    {
      "matches": [
        "https://innovation.pm.netease.com/v6/issues/*",
        "https://web.pm.netease.com/v6/issues/*",
        "https://uu.pm.netease.com/v6/issues/*",
        "https://msdk.pm.netease.com/v6/issues/*"
      ],
      "js": [
        "extensions_issue_page.js"
      ],
      "run_at": "document_start"
    },
  ]
}

bash 复制代码

Refused to execute inline script because it violates the following Content Security Policy directive: "script-src 'self' 'wasm-unsafe-eval' 'inline-speculation-rules' http://localhost:* http://127.0.0.1:*". Either the 'unsafe-inline' keyword, a hash ('sha256-XnQUOdrKm+cYqdkT/ljnkhjaYaitt2Xh3uRQxH/M9z0='), or a nonce ('nonce-...') is required to enable inline execution.

报错比较清晰，就是注入的代码和原有代码不在一个域下，无法操作/注入javascript对象。

最后我是这样做的：

我的方法一

从其他页面获取这个数据，在url参数中携带这个信息；

我的方法二

从dom节点中获取第一个元素信息，然后通过网络请求，重新请求需要的数据。