pwarwick on "[Plugin: Code Embed] Intermittent error when embedded code does not execute"

Sometimes when I make a change to the non-embedded code the script doesn't work. I have run the script through jslint and there are no errors (except one strange error
Expected '/' and instead saw ''.
However, the exact same code executes on a Drupal site.

The code executes d3.js graphic code.

Here is the code:

<script>
var w = 450,
h = 500,
r = Math.min(w, h) / 2,
color = d3.scale.category20c();
function prettyAlert(p_message, p_title) {
p_title = p_title || "";
$(p_message).dialog({ title: p_title, width:400, height:400, resizable: false, modal : true, overlay: { backgroundColor: "#000", opacity: 0.5 }, close: function(ev, ui) { $(this).remove(); }
});
}
hoverover=d3.select("body")
.append("div")
.attr("class","arcs-hoverover")
.style("display","none")
.style("position","absolute");
var svg = d3.select("#chart").append("svg:svg")
.attr("width", w)
.attr("height", h)
.append("svg:g")
.attr("transform", "translate(" + w / 2 + "," + h / 2 + ")");
var partition = d3.layout.partition()
.sort(null)
.size([2 * Math.PI, r * r])
.children(function(d) { retu isNaN(d.value) ? d3.entries(d.value) : null })
.value(function(d) { retu d.value });
var arc = d3.svg.arc()
.startAngle(function(d) { retu d.x })
.endAngle(function(d) { retu d.x + d.dx })
.innerRadius(function(d) { retu Math.sqrt(d.y) })
.outerRadius(function(d) { retu Math.sqrt(d.y + d.dy) })
;
d3.json("http://patriciawarwick.com/drupal/sites/default/d3_files/json/ranking.json", function(json) {
path = svg.data(d3.entries(json)).selectAll("path")
.data(partition.nodes)
.enter().append("svg:path")
.attr("d", arc)
.attr("fill", function(d) { if (d.key != "Not attributed") { retu color(d.key) } else { retu "transparent" } // end else }) // end fill .style("stroke", function(d) { if (d.key == "Not attributed") { retu "lightgrey";} }) // end stroke
.on("click", magnify)
.each(stash)
.on("mouseout",function(d){ d3.select("body") .select(".arcs-hoverover") .style("display","none"); d3.select(this) .style("stroke-width","1px")
}) // end mouseout
.on("mousemove",function(d){ var bodyOffsets = document.body.getBoundingClientRect(); d3.select(this) .style("stroke-width","1px"); d3.select("body") .select(".arcs-hoverover") .style("display","block") .style("top", (d3.event.clientY - bodyOffsets.top -300)+"px") .style("left",(d3.event.clientX - bodyOffsets.left -20)+"px") .html(function( ){ var units=calcUnits(d.key); retu d.key + "<br />" + d3.round(d.value/1000, 2)+ units }) // end html }) // end mousemove
; // end append g
}); // end d3.json
function calcUnits (type) {
// str.indexOf("welcome")
if ((type.indexOf("Production")!=-1) || (type.indexOf("Flaring")!=-1)) { // found retu " GtCO2" }
else { retu " GtCO2e" };
};
function clickAlert (label) {
};
// Distort the specified node to 80% of its parent.
function magnify(node) {
if (parent = node.parent) {
var parent,
x = parent.x,
k = 0.8;
parent.children.forEach(function(sibling) { x += reposition(sibling, x, sibling === node ? parent.dx * k / node.value : parent.dx * (1 - k) / (parent.value - node.value));
});
} else {
reposition(node, 0, node.dx / node.value);
}
path.transition() // was path - undefined
.duration(750)
.attrTween("d", arcTween);
}; // end magnify
// Recursively reposition the node at position x with scale k.
function reposition(node, x, k) {
node.x = x;
if (node.children && (n = node.children.length)) { var i = -1, n; while (++i < n) x += reposition(node.children[i], x, k); }
retu node.dx = node.value * k;
}; // end reposition
// Stash the old values for transition.
function stash(d) {
d.x0 = d.x;
d.dx0 = d.dx;
}; // end stash
// Interpolate the arcs in data space.
function arcTween(a) {
var i = d3.interpolate({x: a.x0, dx: a.dx0}, a);
retu function(t) { var b = i(t); a.x0 = b.x; a.dx0 = b.dx; retu arc(b) }
} // end arcTween
</script>

https://wordpress.org/plugins/simple-embed-code/