从 Chrome扩展程序CSP文档：

From the Chrome extension CSP docs:

内联JavaScript将不会执行。此限制禁止内联< script> 块和内联事件处理程序（例如< button onclick =...> ）。

Inline JavaScript will not be executed. This restriction bans both inline <script> blocks and inline event handlers (e.g. <button onclick="...">).

您不能在您的扩展HTML中包含内嵌脚本，如：

You cannot have inline scripts in your extension HTML like:

<script>alert("I'm an inline script!");</script>

<button onclick="alert('I am an inline script, too!')">

相反，您必须将脚本放入单独的文件中：

Rather, you must place your script into a separate file:

<script src="somescript.js"></script>