title: Mapbox-gl.js logs lots of 404 errors for tiles in the browser console
body: <p>Ok, I am using Mapbox as my mapping library, I render the map layers using the tiles (geojson) uploaded to the mapbox account. <a href="http://jsbin.com/xatinuvoma/edit?html,js" rel="nofollow noreferrer">Demo here</a></p>
  
  <p>The map renders properly but I get lots of 404 not found errors for the source tiles. </p>
  
  <p>How to get rid of these errors?</p>
  
  <p><a href="https://i.stack.imgur.com/NB5o0.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/NB5o0.png" alt="enter image description here"></a></p>
  
  <p>Here is my code:</p>
  
  <pre><code>mapboxgl.accessToken = 'token';
  var map = new mapboxgl.Map({
      container: 'map',
      //style: 'mapbox://styles/mapbox/streets-v9',
      style: 'mapbox://styles/saurabhp/cizmll8v200452sqj5c16hc55?optimize=true', // optimize=true,
      center: [-1.41, 6.32],
      zoom: 5
  });
  
  map.on('load', function () {
      map.addLayer({
          'id': 'maine',
          'type': 'fill',
          'layout': {},
          'paint': {
              'fill-color': {
                property: 'NDVI6',
                  stops: [
                      [0, '#F2F12D'],
                      [1, '#EED322'],
                      [2, '#E6B71E'],
                      [3, '#DA9C20'],
                      [4, '#CA8323'],
                      [5, '#B86B25'],
                      [6, '#A25626'],
                      [7, '#8B4225'],
                      [8, '#723122']
                  ]
              },
              'fill-opacity': 0.8
          },
          'source': {
              'type': 'vector',
              'url': 'mapbox://saurabhp.cizs70g1e003033lkqw0u2rjj-6kayy'
          },
         "source-layer": "ghanaTestTileset",
      });
  });
  </code></pre>