This is not the file you are looking for.
-A reasonably up-to-date version can be found at http://danvk.org/dygraphs/dygraph-combined.js
+A reasonably up-to-date version can be found at http://dygraphs.com/dygraph-combined.js
dygraph-combined.js is a "packed" version of the larger dygraphs JS files. It is
smaller and loads more quickly, but is harder to debug.