diff --git a/package-lock.json b/package-lock.json
index 943f7e1..f59fdb7 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
 	"name": "@exact-realty/lot",
-	"version": "0.0.25",
+	"version": "0.0.26",
 	"lockfileVersion": 3,
 	"requires": true,
 	"packages": {
 		"": {
 			"name": "@exact-realty/lot",
-			"version": "0.0.25",
+			"version": "0.0.26",
 			"license": "ISC",
 			"devDependencies": {
 				"@exact-realty/esbuild-plugin-closure-compiler": "^1.0.4",
diff --git a/package.json b/package.json
index 6edbbe4..767b538 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
 	"name": "@exact-realty/lot",
-	"version": "0.0.25",
+	"version": "0.0.26",
 	"description": "Sandbox for isolating ECMAScript code",
 	"main": "./dist/index.cjs",
 	"types": "./dist/index.d.cts",
diff --git a/src/untrusted/impl/worker/workerSandboxManager.ts b/src/untrusted/impl/worker/workerSandboxManager.ts
index b782807..c01b59b 100644
--- a/src/untrusted/impl/worker/workerSandboxManager.ts
+++ b/src/untrusted/impl/worker/workerSandboxManager.ts
@@ -161,7 +161,7 @@ const workerSandboxManager = async (
 				if (EMessageTypes.REQUEST !== data[0]) return;
 
 				Logger.debug(
-					'Forwarding REQUEST from worker to parent for executing task' +
+					'Forwarding REQUEST from worker to parent for executing task ' +
 						data[2],
 				);
 
diff --git a/src/untrusted/lib/performTaskFactory.ts b/src/untrusted/lib/performTaskFactory.ts
index 6ec6b2d..ae07eb9 100644
--- a/src/untrusted/lib/performTaskFactory.ts
+++ b/src/untrusted/lib/performTaskFactory.ts
@@ -57,7 +57,11 @@ const performTaskFactory = <T>(
 					unresolved.splice(idx, 1);
 				}
 			};
-			incomingPort.onmessage = (ev) => {
+			// The following const definitions prevent Google Closure Compiler
+			// from mangling the event handler names
+			const onmessage = 'onmessage';
+			const onmessageerror = 'onmessageerror';
+			incomingPort[onmessage] = (ev) => {
 				const data = ev['data'];
 				if (
 					!aIsArray(data) ||
@@ -73,7 +77,8 @@ const performTaskFactory = <T>(
 						(data[0] === EMessageTypes.RESULT
 							? 'RESULT'
 							: 'ERROR') +
-						' from executing task',
+						' from executing task ' +
+						op,
 				);
 
 				if (data[0] === EMessageTypes.RESULT) {
@@ -83,12 +88,12 @@ const performTaskFactory = <T>(
 				}
 				markAsResolved();
 			};
-			incomingPort.onmessageerror = (ev) => {
+			incomingPort[onmessageerror] = () => {
 				Logger.debug(
-					'Error receiving task result after executing task',
+					'Error decoding task result after executing task ' + op,
 				);
 
-				reject(ev['data']);
+				reject(new E('Error decoding task result'));
 				markAsResolved();
 			};
 			incomingPort.start();