如何正确设置helmet.js来解决CSP问题? [英] How do I set up helmet.js correctly to resolve CSP issue?

问题描述

当我启动Express应用程序时，浏览器会给我这个错误:

When I start my express app the browser gives me this error:

Refused to load the script 'http://localhost:1337/main.js' because it violates
the following Content Security Policy directive: "script-src unsafe-eval".
Note that 'script-src-elem' was not explicitly set, so 'script-src' is used as a fallback.

在我的index.js文件中，我像这样设置了头盔:

In my index.js file I have set helmet up like so:

// Set Content Security Policies
const scriptSources = ["'self'", "'unsafe-inline'", "'unsafe-eval'"];
const styleSources = ["'self'", "'unsafe-inline'"];
const connectSources = ["'self'"];

app.use(
  helmet.contentSecurityPolicy({
    defaultSrc: ["'self'"],
    scriptSrc: scriptSources,
    scriptSrcElem: scriptSources,
    styleSrc: styleSources,
    connectSrc: connectSources,
    reportUri: '/report-violation',
    reportOnly: false,
    safari5: false  
  })
);
app.use(helmet({
  contentSecurityPolicy: false,
}));

并且我的index.html像这样在.js文件中加载:

and my index.html is loading in the .js file like this:

<script type="module" src="./main.js"></script>

这是我的GitHub存储库: https://github.com/jgonzales394/fsn.pw

Here is my GitHub Repo: https://github.com/jgonzales394/fsn.pw

推荐答案

此处是头盔维护者.发生这种情况是因为您的指令需要嵌套在 directives 属性下.

Helmet maintainer here. This is happening because your directives need to be nested under a directives property.

例如:

app.use(
  helmet.contentSecurityPolicy({
    directives: {
      defaultSrc: ["'self'"],
      scriptSrc: scriptSources,
      // ...
    },
  })
)

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