diff --git a/src/display/worker_options.js b/src/display/worker_options.js
index af53729af..1e82a4f7e 100644
--- a/src/display/worker_options.js
+++ b/src/display/worker_options.js
@@ -27,14 +27,7 @@
 /** @type {GlobalWorkerOptionsType} */
 const GlobalWorkerOptions = Object.create(null);
 
-GlobalWorkerOptions.workerPort =
-  GlobalWorkerOptions.workerPort === undefined
-    ? null
-    : GlobalWorkerOptions.workerPort;
-
-GlobalWorkerOptions.workerSrc =
-  GlobalWorkerOptions.workerSrc === undefined
-    ? ""
-    : GlobalWorkerOptions.workerSrc;
+GlobalWorkerOptions.workerPort = null;
+GlobalWorkerOptions.workerSrc = "";
 
 export { GlobalWorkerOptions };