# browser-load-script

[![Build Status][github_actions_badge]][github_actions_link]
[![Coverage][coveralls_badge]][coveralls_link]
[![Npm Version][package_version_badge]][package_link]
[![MIT License][license_badge]][license_link]

[github_actions_badge]: https://img.shields.io/github/workflow/status/fisker/browser-load-script/CI/main?style=flat-square
[github_actions_link]: https://github.com/fisker/browser-load-script/actions?query=branch%3Amain
[coveralls_badge]: https://img.shields.io/coveralls/github/fisker/browser-load-script/main?style=flat-square
[coveralls_link]: https://coveralls.io/github/fisker/browser-load-script?branch=main
[license_badge]: https://img.shields.io/npm/l/browser-load-script.svg?style=flat-square
[license_link]: https://github.com/fisker/browser-load-script/blob/main/license
[package_version_badge]: https://img.shields.io/npm/v/browser-load-script.svg?style=flat-square
[package_link]: https://www.npmjs.com/package/browser-load-script

> Load script in browser.

## Install

```bash
yarn add browser-load-script
```

## Usage

```html
<script type="importmap">
  {
    "imports": {
      "browser-load-script": "https://unpkg.com/browser-load-script"
    }
  }
</script>
<script type="module">
  import loadScript from 'browser-load-script'

  await loadScript('data:application/javascript,')
</script>
```

## API

### `loadScript(sourceOrProperties)`

```js
import loadScript from 'browser-load-script'

await loadScript('https://example.com/script.js')
```

#### `sourceOrProperties`

- Type: `string | Object`

[Available properties](https://developer.mozilla.org/en-US/docs/Web/API/HTMLScriptElement#instance_properties)

```js
import loadScript from 'browser-load-script'

await loadScript({
  src: 'https://example.com/script.js',
  defer: true,
  crossOrigin: 'anonymous',
})
```


browser-load-script

fisker

(Experimental) An ambiguous license classifier was found.

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Ambiguous License Classifier

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Bad text encoding

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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

This package has multiple bin scripts with the same name. This can cause non-deterministic behavior when installing or could be a sign of a supply chain attack.

What is bin script confusion?

Bin script confusion

This Chrome extension includes content scripts that execute JavaScript on specified websites.

What are Chrome extension content scripts?

Chrome: Content Script

This Chrome extension requests host permissions to access specific websites or domains.

What are Chrome extension host permissions?

Chrome: Host Permission

This Chrome extension requests permissions to access browser APIs, user data, or system features.

What are Chrome extension permissions?

Chrome: Permission

This Chrome extension requests wildcard host permissions that grant broad access to websites.

What are Chrome extension wildcard host permissions?

Chrome: Wildcard Host Permission

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

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Copyleft License

Contains a Critical Common Vulnerability and Exposure (CVE).

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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 SPDX exception

(Experimental) License is deprecated which may have legal implications regarding the package's use.

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Deprecated license

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

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Possible typosquat attack

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Dynamic require

Package does not contain any code. It may be removed, is name squatting, or the result of a faulty package publish.

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Empty package

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Environment variable access

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File dependency

Accesses the file system, and could potentially read sensitive data.

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Filesystem access

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Wildcard dependency

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An input argument to this GitHub Action is being passed back as an output. If a user of this action passes untrusted input, it could be used in an insecure manner by consuming workflows.

GitHub Actions: Input argument passed back as output

An input argument to this GitHub Action flows into a dangerous sink (such as shell command execution). This could allow a malicious user to inject commands or exploit the action.

GitHub Actions: Input argument flows to dangerous sink

A GitHub context variable (such as issue title, PR description, or comment body) is being exported as an environment variable. These context values are user-controlled and could be exploited by subsequent workflow steps.

GitHub Actions: GitHub context variable exported as environment variable

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Git dependency

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GitHub dependency

AI has identified unusual behaviors that may pose a security risk.

What is an AI-detected potential code anomaly?

AI-detected potential code anomaly

AI has identified this package as a potential typosquat of a more popular package. This suggests that the package may be intentionally mimicking another package's name, description, or other metadata.

What is AI-detected potential typosquatting?

AI-detected possible typosquat

AI has identified this package as malware. This is a strong signal that the package may be malicious.

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AI-detected potential malware

AI has determined that this package may contain potential security issues or vulnerabilities.

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AI-detected potential security risk

Contains native code (e.g., compiled binaries or shared libraries). Including native code can obscure malicious behavior.

Why is native code a concern?

Native code

Contains high entropy strings. This could be a sign of encrypted data, leaked secrets or obfuscated 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

Contains a dependency which resolves to a remote HTTP URL which could be used to inject untrusted code and reduce overall package reliability.

What are http dependencies?

HTTP dependency

Install scripts are run when the package is installed or built. Malicious packages often use scripts that run automatically to execute payloads or fetch additional code.

What is an install script?

Install scripts

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Invalid manifest file

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Invisible chars

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Long strings

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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

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Minified code

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Non-existent author

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Missing dependency

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Missing license

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Missing package tarball

(Experimental) Package contains multiple licenses.

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Mixed license

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Modified license exception

(Experimental) Package contains a modified version of an SPDX license. Please read carefully before using this code.

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.

browser-load-script

browser-load-script

Install

Usage

API

loadScript(sourceOrProperties)

sourceOrProperties

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`loadScript(sourceOrProperties)`

`sourceOrProperties`