Update lib/vscode/src/vs/workbench/contrib/webview/browser/pre/service-worker.js

Co-authored-by: Asher <[email protected]>

Author: jsjoeio

lib/vscode/src/vs/workbench/contrib/webview/browser/pre/service-worker.js

@@ -256,7 +256,7 @@ async function processResourceRequest(event, requestUrl) {
 
 	const firstHostSegment = requestUrl.hostname.slice(0, requestUrl.hostname.length - (resourceBaseAuthority.length + 1));
 	const scheme = firstHostSegment.split('+', 1)[0];
-	const authority = firstHostSegment.slice(scheme.length + 1) + port ? (":" + port) : ""
+	const authority = firstHostSegment.slice(scheme.length + 1) + requestUrl.port ? (":" + requestUrl.port) : ""; // may be empty
 
 	for (const parentClient of parentClients) {
 		parentClient.postMessage({