source maps don't route.

[jcoyne]

I've added "openseadragon": "~2.2.0" to my bower.json file. This script ships with a source source map file. When I load the page in Chrome with the developer console open, it makes a request for the map, but it's not delivered:

::1 - - [13/Jul/2017:14:02:38 CDT] "GET /openseadragon.min.js.map HTTP/1.1" 404 23067