test: enhance unsupported properties test

data/olStyles/unsupported_properties.ts

@@ -1,10 +1,16 @@
 import OlStyle from 'ol/style/Style';
 import OlStyleFill from 'ol/style/Fill';
+import OlStyleIcon from 'ol/style/Icon';
 
-const olUnsupportedProperties = new OlStyle({
+const unsupportedFill = new OlStyle({
   fill: new OlStyleFill({
     color: '#F1337F'
   })
 });
+const unsupportedImage = new OlStyle({
+  image: new OlStyleIcon({
+    src: 'peter.png'
+  })
+});
 
-export default olUnsupportedProperties;
+export default [unsupportedFill, unsupportedImage];

data/styles/unsupported_properties.ts

@@ -9,6 +9,10 @@ const unsupportedProperties: Style = {
         kind: 'Fill',
         color: '#F1337F',
         opacity: 0.5
+      }, {
+        kind: 'Icon',
+        image: 'peter.png',
+        anchor: 'bottom-left'
       }]
     }
   ]

src/OlStyleParser.spec.ts

@@ -1316,7 +1316,10 @@ describe('OlStyleParser implements StyleParser', () => {
             info: 'Use fillOpacity instead.',
             support: 'none'
           }
-        }
+        },
+        IconSymbolizer: {
+          anchor: 'none',
+        },
       }
     };
     const warningsGot = ['Your style contains unsupportedProperties!'];

src/OlStyleParser.ts

@@ -1238,7 +1238,7 @@ export class OlStyleParser implements StyleParser<OlStyleLike> {
 
     const baseProps: OlStyleIconOptions = {
       src: isSprite(symbolizer.image) ? symbolizer.image.source as string : symbolizer.image as string,
-      crossOrigin: 'anonymous',
+      crossOrigin: null,
       opacity: symbolizer.opacity as number,
       width: symbolizer.size as number,
       // Rotation in openlayers is radians while we use degree