# nanobeacon [![stability][0]][1]
[![npm version][2]][3] [![build status][4]][5]
[![downloads][8]][9] [![js-standard-style][10]][11]

Small `navigator.sendBeacon` wrapper. Sends an HTTP request with priority
`lowest` to a remote host, and ensures it arrives without blocking page
navigation. Useful for sending analytics data.

Also a friendly reminder not to ever store people's IP addresses. Only store
the minimum amount of data needed to inform decisions. Be kind, don't give
analytics a bad name.

## Usage
```js
var nanobeacon = require('nanobeacon')

var url = 'http://jsfiddle.net?sendbeacon'
var ok = nanobeacon(url, { hello: 'world' })

var msg = ok ? 'OK' : 'NOT OK'
document.body.innerHTML = '<h1>message status: ' + msg + '</h1>'
```

## API
### `ok = nanobeacon(url, [data])`
Send a request with a payload to a remote host. 

If user has enabled Do Not Track (`window.navigator.doNotTrack`) then no beacon will be sent and nanobeacon will return `false`.

## See Also
- [dom/navigator/sendBeacon](http://devdocs.io/dom/navigator/sendbeacon)

## License
[MIT](https://tldrlegal.com/license/mit-license)

[0]: https://img.shields.io/badge/stability-experimental-orange.svg?style=flat-square
[1]: https://nodejs.org/api/documentation.html#documentation_stability_index
[2]: https://img.shields.io/npm/v/nanobeacon.svg?style=flat-square
[3]: https://npmjs.org/package/nanobeacon
[4]: https://img.shields.io/travis/yoshuawuyts/nanobeacon/master.svg?style=flat-square
[5]: https://travis-ci.org/yoshuawuyts/nanobeacon
[6]: https://img.shields.io/codecov/c/github/yoshuawuyts/nanobeacon/master.svg?style=flat-square
[7]: https://codecov.io/github/yoshuawuyts/nanobeacon
[8]: http://img.shields.io/npm/dm/nanobeacon.svg?style=flat-square
[9]: https://npmjs.org/package/nanobeacon
[10]: https://img.shields.io/badge/code%20style-standard-brightgreen.svg?style=flat-square
[11]: https://github.com/feross/standard


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Bidirectional unicode control characters

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Bin script confusion

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

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Chrome: Content Script

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

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Chrome: Host Permission

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

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Chrome: Permission

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

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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

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High CVE

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Deprecated license

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Possible typosquat attack

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Dynamic require

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Empty package

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Environment variable access

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File dependency

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Wildcard dependency

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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.

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Native code

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High entropy strings

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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.

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Install scripts

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Invalid manifest file

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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.

nanobeacon

Usage

API

ok = nanobeacon(url, [data])

See Also

License

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`ok = nanobeacon(url, [data])`