fix(map): handle empty layer references (#167)

natgeosociety · Sep 24, 2020 · ff7a5d1 · ff7a5d1
1 parent cb901c3
commit ff7a5d1
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/packages/earth-map/src/sagas/saga-utils.ts b/packages/earth-map/src/sagas/saga-utils.ts
@@ -62,7 +62,7 @@ export const onlyMatch = (actionToMatch: string | Function, payload: any): Funct
 export const flattenLayerConfig = (layer: ILayerRaw) => {
   const adaptedLayer = flattenEachLayerConfig(layer);
 
-  if (!!adaptedLayer?.references.length) {
+  if (!!adaptedLayer?.references?.length) {
     const adaptedReferences = layer.references.map(flattenEachLayerConfig);
 
     return {