Sankey chart with the sankey.js amended to sort the links alphabetically by d.category. An improvement will be to sort by d.category and then by its source/target node.
forked from tomshanley's block: Sankey chart with links sorted by category
forked from nigelramdial's block: Sankey chart with links sorted by category
Modified http://d3js.org/d3.v3.min.js to a secure url
Modified http://d3js.org/colorbrewer.v1.min.js to a secure url
https://d3js.org/d3.v3.min.js
https://d3js.org/colorbrewer.v1.min.js