include::../description.adoc[]

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):

[source,javascript]
----
const express = require('express');
const helmet= require('helmet');

let app = express();

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

include::../see.adoc[]

ifdef::env-github,rspecator-view[]

'''
== Implementation Specification
(visible only on this page)

include::../message.adoc[]

endif::env-github,rspecator-view[]