title: how to load a local JSON file to google maps?
body: <p>I'm developing a map on my site using google maps JS API.
  my map has a local JSON layer that defines a certain polygon area on the map.
  everything went fine when i ran it within the visual-studio, 
  but when i double clicking <strong>map.html</strong> outside the VisualStudio project the polygon is not shown.
  why is it?</p>
  
  <hr>
  
  <p>this is the call for loading the Json layer:</p>
  
  <pre><code>        map.data.loadGeoJson(href = "MapLayer.json");
          map.data.setStyle({
  
              fillColor: 'red'
          });
  </code></pre>