add error handler

main.js

@@ -116,6 +116,10 @@ const worker = new Worker("./workers/compute.js");
 worker.addEventListener("message", (message) => {
 	document.querySelector("#result").value = message.data;
 });
+worker.addEventListener("error", (e) => {
+	console.log(e);
+	document.querySelector("#result").value = e.message;
+});
 
 document.querySelector("#expr").addEventListener("focus", setupExprInput);
 document.querySelector("#expr").addEventListener("keyup", (e) => evalOnEnter(e));

workers/compute.js

@@ -18,11 +18,7 @@ importScripts("./math.js")
 
 addEventListener("message", (message) => {
 	if (message.data.command === "compute") {
-		try {
-			compute(message.data.queue, message.data.m);
-		} catch(e) {
-			postMessage(e);
-		}
+		compute(message.data.queue, message.data.m);
 	}
 });