unpkg/modules/client/main/About.js

96 lines
2.8 KiB
JavaScript

import React from 'react';
import Wrapper from './Wrapper';
import cloudflareLogo from './CloudflareLogo.png';
import herokuLogo from './HerokuLogo.png';
const styles = {
logoList: {
margin: '2em 0',
display: 'flex',
justifyContent: 'center'
},
logo: {
textAlign: 'center',
flex: '1',
maxWidth: '80%'
},
logoImage: {
maxWidth: '60%'
}
};
function AboutLogo({ children }) {
return <div style={styles.logo}>{children}</div>;
}
function AboutLogoImage(props) {
return <img {...props} style={styles.logoImage} />;
}
export default function About() {
return (
<Wrapper>
<p>
unpkg is an <a href="https://github.com/unpkg">open source</a> project
built and maintained by{' '}
<a href="https://twitter.com/mjackson">Michael Jackson</a>.
</p>
<h3 id="sponsors">Sponsors</h3>
<p>
The fast, global infrastructure that powers unpkg is generously donated
by <a href="https://www.cloudflare.com">Cloudflare</a> and{' '}
<a href="https://www.heroku.com">Heroku</a>.
</p>
<div style={styles.logoList}>
<AboutLogo>
<a href="https://www.cloudflare.com">
<AboutLogoImage src={cloudflareLogo} />
</a>
</AboutLogo>
<AboutLogo>
<a href="https://www.heroku.com">
<AboutLogoImage src={herokuLogo} />
</a>
</AboutLogo>
</div>
<h3 id="cache-behavior">Cache Behavior</h3>
<p>
The CDN caches files based on their permanent URL, which includes the
npm package version. This works because npm does not allow package
authors to overwrite a package that has already been published with a
different one at the same version number.
</p>
<p>
URLs that do not specify a package version number redirect to one that
does. This is the <code>latest</code> version when no version is
specified, or the <code>maxSatisfying</code> version when a{' '}
<a href="https://github.com/npm/node-semver">semver version</a> is
given. Redirects are cached for 5 minutes.
</p>
<p>
Browsers are instructed (via the <code>Cache-Control</code> header) to
cache assets for 1 year.
</p>
<h3 id="abuse">Abuse</h3>
<p>
unpkg maintains a list of packages that are known to be malicious. If
you find such a package on npm, please let us know!
</p>
<h3 id="support">Support</h3>
<p>
unpkg is not affiliated with or supported by npm, Inc. in any way.
Please do not contact npm for help with unpkg. Instead, please reach out
to <a href="https://twitter.com/unpkg">@unpkg</a> with any questions or
concerns.
</p>
</Wrapper>
);
}