参考:https://codebug.vip/questions-561997.htm
Refused to load the script 'https://cdn.bootcss.com/jquery/1.12.1/jquery.min.js' because it violates the following Content Security Policy directive: "script-src 'self' blob: filesystem: chrome-extension-resource:". Note that 'script-src-elem' was not explicitly set, so 'script-src' is used as a fallback.
Refused to load the script 'https://cdn.bootcss.com/sweetalert/2.1.2/sweetalert.min.js' because it violates the following Content Security Policy directive: "script-src 'self' blob: filesystem: chrome-extension-resource:". Note that 'script-src-elem' was not explicitly set, so 'script-src' is used as a fallback.
在开发Chrome插件的时候引入外部js出现了这个错误，解决办法在manifest.json文件中添加以下代码，把example.com改成你的域名
"content_security_policy": "script-src 'self' https://example.com; object-src 'self'"