Working Zoom/Pan example with D3.js? -


i'm trying example working (http://bl.ocks.org/mbostock/2206340) getting error (below). code i'm trying run same @ link 1 exception, had modify json location didn't serve json file locally.

i've been trying several topojson examples , getting errors too. i'm not sure if it's api version issue or what. ideas how working or enlighten me how debug issue? i'm pretty new d3.

update: error added

   http://bl.ocks.org/mbostock/raw/4090846/us.json     200 ok             1.29s        d3.v3.min.js (line 1)     typeerror: undefined     [break on error]        .data(topojson.feature(us, us.objects.states).features)

update: code added

<!doctype html> <meta charset="utf-8"> <style>  .background {   fill: none;   pointer-events: all; }  #states {   fill: #aaa; }  #state-borders {   fill: none;   stroke: #fff;   stroke-width: 1.5px;   stroke-linejoin: round;   stroke-linecap: round;   pointer-events: none; }  </style> <body> <script src="http://d3js.org/d3.v3.min.js"></script> <script src="http://d3js.org/topojson.v1.min.js"></script> <script>  var width = 960,     height = 500;  var projection = d3.geo.albersusa()     .scale(1070)     .translate([width / 2, height / 2]);  var path = d3.geo.path()     .projection(projection);  var zoom = d3.behavior.zoom()     .translate(projection.translate())     .scale(projection.scale())     .scaleextent([height, 8 * height])     .on("zoom", zoomed);  var svg = d3.select("body").append("svg")     .attr("width", width)     .attr("height", height);  var g = svg.append("g")     .call(zoom);  g.append("rect")     .attr("class", "background")     .attr("width", width)     .attr("height", height);  d3.json("http://bl.ocks.org/mbostock/raw/4090846/us.json", function(error, us) {   g.append("g")       .attr("id", "states")     .selectall("path")       .data(topojson.feature(us, us.objects.states).features)     .enter().append("path")       .attr("d", path)       .on("click", clicked);    g.append("path")       .datum(topojson.mesh(us, us.objects.states, function(a, b) { return !== b; }))       .attr("id", "state-borders")       .attr("d", path); });  function clicked(d) {   var centroid = path.centroid(d),       translate = projection.translate();    projection.translate([     translate[0] - centroid[0] + width / 2,     translate[1] - centroid[1] + height / 2   ]);    zoom.translate(projection.translate());    g.selectall("path").transition()       .duration(700)       .attr("d", path); }  function zoomed() {   projection.translate(d3.event.translate).scale(d3.event.scale);   g.selectall("path").attr("d", path); }  </script>

if running code on localhost, , referencing way posted, you'll "access-control-allow-origin" error.

if put code on gist, work fine.


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