include::../description.adoc[]

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

include::../recommended.adoc[]

== Sensitive Code Example

In Express.js application the code is sensitive if the https://www.npmjs.com/package/nocache[helmet nocache] middleware is not used:

----
const express = require('express');
let app = express(); // Sensitive
----

== Compliant Solution

In Express.js application a standard way to implement cache-control HTTP header with no-store directive is with the https://www.npmjs.com/package/nocache[helmet nocache] middleware:

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

let app = express();
app.use(nocache()); // Compliant
// or
app.use(helmet.nocache()); // Compliant
----

include::../see.adoc[]

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

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

include::../message.adoc[]

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