Firebase未在Chrome扩展内容脚本中加载-Firebasenotgettingloadedinchromeextensioncontentscript

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What you are doing is injecting the firebase library by using document.body.append(...). Then, you are trying to access the firebase library from inside your extension, but chrome extensions are sandboxed away from the web page. You injected the firebase library into the web page, so it is not directly accessible to your extension. You can access it one of two ways:

你正在做的是使用document.body.append(...)注入firebase库。然后,您尝试从扩展程序内部访问firebase库,但Chrome扩展程序将远离网页。您已将firebase库注入网页,因此您的扩展程序无法直接访问它。您可以通过以下两种方式之一访问它:

1. Inject the code you want to interact with firebase into the web page. It will be able to interact with the injected firebase code.

   将要与firebase交互的代码注入网页。它将能够与注入的firebase代码进行交互。

2. Download the firebase library Javascript, and add the firebase code to your chrome extension manifest. You will have to download it and package it with the rest of your extension's codebase. It then can be used directly in your extension code.

   下载firebase库Javascript,并将firebase代码添加到chrome扩展清单中。您必须下载它并将其与扩展程序的其余代码库打包在一起。然后可以直接在您的扩展程序代码中使用它。

I personally recommend 2. It is more secure to keep all of the code inside the chrome sandbox and not expose any firebase code to the user (as they could inspect the web page and view your injected code) or website. This is especially true if you need to use any secret or private keys to connect to firebase.

我个人建议2.将所有代码保存在chrome沙箱中并且不向用户公开任何firebase代码(因为他们可以检查网页并查看注入的代码)或网站是更安全的。如果您需要使用任何密钥或私钥连接到firebase,尤其如此。