feat(dispatchr): add cause for thrown error (#758)

Author: nspector

package.json

@@ -16,7 +16,7 @@
     "format": "prettier --write .",
     "format:check": "prettier --check .",
     "lint": "eslint .",
-    "test": "lerna run lint --since --stream && jest"
+    "test": "lerna run lint --since --stream && jest --forceExit"
   },
   "devDependencies": {
     "@babel/cli": "^7.11.6",

packages/dispatchr/lib/Dispatcher.js

@@ -188,7 +188,7 @@ Dispatcher.prototype._throwOrCallErrorHandler =
                 context
             );
         } else {
-            throw new Error(message);
+            throw new Error(message, { cause: meta && meta.error });
         }
     };