# safe-window

[![npm version](https://img.shields.io/npm/v/safe-window.svg?style=flat)](https://www.npmjs.com/package/safe-window)

A utility for safely getting properties from the window object in projects that render on both the server and the client.

### Installation

```
npm i -S safe-window
```

### Usage

```
import safeWindow from 'safe-window';

window.foo = {bar: 'baz'}
safeWindow('foo.bar')
=> 'baz'
```

##### Works with arrays

```
window.foo = [{bar: 'baz'}]
safeWindow('foo.0.bar')
=> 'baz'
```

##### Window doesn't exist (server side)

```
safeWindow('foo.bar')
=> null

// With default
safeWindow('foo.bar', 'qux')
=> 'qux'
```



A utility for safely getting properties from the window object in projects that render on both the server and the client.

Meet the Socket Team at BlackHat and DEF CON in Las Vegas, Aug 4-6

safe-window

chardos

(Experimental) An ambiguous license classifier was found.

What is an ambiguous license classifier?

Ambiguous License Classifier

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Bad text encoding

Package version is not a valid semantic version (semver).

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Bad semver

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Bad dependency semver

Source files contain bidirectional unicode control characters. This could indicate a Trojan source supply chain attack. See: trojansource.codes for more information.

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Bidirectional unicode control characters

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What is bin script confusion?

Bin script confusion

Semantic versions published out of chronological order.

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Chronological version anomaly

Project maintainer's SSH key has been compromised.

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Compromised SSH key

(Experimental) Copyleft license information was found.

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Title

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High CVE

Uses debug, reflection and dynamic code execution features.

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Debug access

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Deprecated

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Deprecated license

Package name is similar to other popular packages and may not be the package you want.

What is a typosquat?

Possible typosquat attack

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Dynamic require

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Empty package

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File dependency

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Filesystem access

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Wildcard dependency

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AI-detected potential security risk

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Native code

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High entropy strings

Contains unicode homoglyphs which can be used in supply chain confusion attacks.

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Unicode homoglyphs

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HTTP dependency

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Install scripts

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Invisible chars

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License change

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License Policy Violation

Contains long string literals, which may be a sign of obfuscated or packed code.

What's wrong with long strings?

Long strings

Package has recently undergone a major refactor. It may be unstable or indicate significant internal changes. Use caution when updating to versions that include significant changes.

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Major refactor

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Known malware

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Manifest confusion

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Medium CVE

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Low CVE

This package contains minified code. This may be harmless in some cases where minified code is included in packaged libraries, however packages on npm should not minify code.

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Minified code

(Experimental) A package's licensing information has fine-grained problems.

Misc. License Issues

The package was published by an npm account that no longer exists.

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Missing dependency

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Missing license

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(Experimental) Package contains multiple licenses.

What is a mixed license?

Mixed license

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What is a modified license exception?

Modified license exception

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What is a modified license?

Modified license

What is network access?

Network access

A new npm collaborator published a version of the package for the first time. New collaborators are usually benign additions to a project, but do indicate a change to the security surface area of a package.

What is new author?

New author

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Why is contributor and author data important?

No contributors or author data

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No bug tracker

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No repository

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What does no tests mean?

No tests

Package is not semver >=1. This means it is not stable and does not support ^ ranges.

safe-window

safe-window

Installation

Usage

Works with arrays

Window doesn't exist (server side)

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