rspec/rules/S5734/javascript/rule.adoc

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include::../ask-yourself.adoc[]

include::../recommended.adoc[]

== Sensitive Code Example

In Express.js application the code is sensitive if, when using https://www.npmjs.com/package/helmet[helmet], the `+noSniff+` middleware is disabled:

----
const express = require('express');
const helmet = require('helmet');

let app = express();

app.use(
  helmet({
    noSniff: false, // Sensitive
  })
);
----

== Compliant Solution

When using `+helmet+` in an Express.js application, the `+noSniff+` middleware should be enabled (it is also done by default):

----
const express = require('express');
const helmet= require('helmet');

let app = express();

app.use(helmet.noSniff());
----

include::../see.adoc[]