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404.html
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404.html
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<!doctype html>
<html lang=en >
<head>
<meta charset=utf-8 >
<meta name=author content="Theo Armour" >
<title></title>
</head>
<body>
<script>
// Welcome. Anybody who looks at the source code of other people's error pages must be wonderful!
// Written in 'everything-JavaScript' style
document.body.style.cssText = `font: bold 12pt monospace; height: ${ window.innerHeight }px; overflow: hidden;`;
const user = "ladybug-tools";
const repo = "spider-2021";
const info = document.body.appendChild( document.createElement( "div" ) );
document.title = `404 for ${ user }${ repo }`;
info.innerHTML = `
<div style=background-color:white;left:0;margin:auto;max-width:50%;opacity:0.5;padding:1rem;right:0;text-align:center; >
<h1 title="This is the 404 error page" >Oops</h1>
<h2>Website: <a href="https://${ user }.github.io/${ repo }" title="Go to the app" >${ user }.github.io/${ repo }</a></h2>
<h2>Source code: <a href=https://github.com/${ user }/${ repo } title="Go to the source code" >github.com/${ user }/${ repo }</a></h2>
<p><i>Stuff here is rarely deleted, but it does move around. It's here somewhere.</i></p>
</div>`;
toggleBackgroundGradient();
function toggleBackgroundGradient() {
// 2020-12-26
const col = () => ( 0.5 + 0.5 * Math.random() ).toString( 16 ).slice( 2, 8 );
const pt = () => ( Math.random() * window.innerWidth ).toFixed( 0 );
document.body.style.backgroundImage = `radial-gradient( circle farthest-corner at ${ pt() }px
${ pt() }px, #${ col() } 0%, #${ col() } 50%, #${ col() } 100% )`;
}
</script>
</body>
</html>