OpenLayers 3 GeoJSON not loading

I am having trouble loading a GeoJSON layer (below is my defintion). Everything works fine when I read the file locally in a web browser, e.g. file:///Z:/inetpub/wwwroot/bang.html. However, when I try to access the site through the domain, e.g www.daverules.com/bang.html, none of my GeoJSON layers show up.

It should also bear mentioning that I have a couple of Leaflet maps that will load GeoJSON with similar URLs without issue.

var wellsLayer = new ol.layer.Vector({
  source: new ol.source.GeoJSON({
    projection: 'EPSG:3857',
    url: "./data/WELLS.geojson"
  }),
  name: 'Wells',

  style: customStyleFunction
});

Response from the server is as follows. It shows file not found, however, I am pretty sure it is there.

GET http://daverules.com/data/WELLS.geojson 404 (Not Found)