Copy-paste of the official mapbox example, but with the data copied into the block
Built with blockbuilder.org
forked from enjalot's block: mapbox: omnivore.topojson
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<html>
<head>
<meta charset=utf-8 />
<title>TopoJSON data</title>
<meta name='viewport' content='initial-scale=1,maximum-scale=1,user-scalable=no' />
<script src='https://api.mapbox.com/mapbox.js/v2.3.0/mapbox.js'></script>
<link href='https://api.mapbox.com/mapbox.js/v2.3.0/mapbox.css' rel='stylesheet' />
<style>
body { margin:0; padding:0; }
#map { position:absolute; top:0; bottom:0; width:100%; }
</style>
</head>
<body>
<script src='https://api.mapbox.com/mapbox.js/plugins/leaflet-omnivore/v0.2.0/leaflet-omnivore.min.js'></script>
<div id='map'></div>
<script>
L.mapbox.accessToken = 'pk.eyJ1IjoiZW5qYWxvdCIsImEiOiIzOTJmMjBiZmI2NGQ2ZjAzODhiMzhiOGI2MTI1YTk4YSJ9.sIOXXU3TPp5dLg_L3cUxhQ';
var map = L.mapbox.map('map', 'mapbox.streets').setView([51.5, -0.02], 10);
// Omnivore will AJAX-request this file behind the scenes and parse it:
// note that there are considerations:
// - The file must either be on the same domain as the page that requests it,
// or both the server it is requested from and the user's browser must
// support CORS.
// Internally this function uses the TopoJSON library to decode the given file
// into GeoJSON.
var topoLayer = omnivore.topojson('london-neighborhoods.topojson')
.addTo(map);
</script>
</body>
</html>
https://api.mapbox.com/mapbox.js/v2.3.0/mapbox.js
https://api.mapbox.com/mapbox.js/plugins/leaflet-omnivore/v0.2.0/leaflet-omnivore.min.js