Issue #60. Fix null-point error if image has no projection information

Author: Nikolai Maltsev

dist/0.ce4fa17e796500cc1eca.worker.worker.js renamed to dist/0.5a10394fad935889335e.worker.worker.js

@@ -74,6 +74,7 @@ class GeoRaster {
       this._data = data;
       this.rasterType = 'geotiff';
       this.sourceType = 'ArrayBuffer';
+      this._metadata = metadata;
     } else if (Array.isArray(data) && metadata) {
       this._data = data;
       this.rasterType = 'object';

dist/0.6000412d60ee3bcdd884.worker.worker.js renamed to dist/0.70ec3367f72b89cf4238.worker.worker.js

@@ -90,9 +90,9 @@ export default function parseData(data, debug) {
               const {
                 GeographicTypeGeoKey,
                 ProjectedCSTypeGeoKey,
-              } = image.getGeoKeys();
+              } = (image.getGeoKeys() || {});
 
-              result.projection = ProjectedCSTypeGeoKey || GeographicTypeGeoKey;
+              result.projection = ProjectedCSTypeGeoKey || GeographicTypeGeoKey || data.metadata.projection
               if (debug) console.log('projection:', result.projection);
 
               result.height = height = image.getHeight();