fix(Source): remove dependent layers on componentWillUnmount

src/components/Layer/index.js

@@ -191,6 +191,8 @@ class Layer extends PureComponent<Props> {
         this._map.off(eventName, this._id, this[handlerName]);
       }
     });
+
+    this._map.removeLayer(this._id);
   }
 
   _onClick = (event: MapMouseEvent): void => {

src/components/Source/index.js

@@ -56,6 +56,16 @@ class Source extends PureComponent<Props> {
     }
 
     if (this._map.getSource(this.props.id)) {
+      const { id } = this.props;
+      const { layers } = this._map.getStyle();
+      if (layers) {
+        layers.forEach((layer) => {
+          if (layer.source === id) {
+            this._map.removeLayer(layer.id);
+          }
+        });
+      }
+
       this._map.removeSource(this.props.id);
     }
   }