Merge pull request #6257 from remotion-dev/log-if-error-mesage-cannot-be-propagated

Author: JonnyBurger

packages/renderer/src/offthread-video-server.ts

@@ -225,7 +225,12 @@ export const startOffthreadVideoServer = ({
 						'Could not extract frame from compositor',
 						err,
 					);
-					if (!response.headersSent) {
+					if (response.headersSent) {
+						Log.error(
+							{indent, logLevel},
+							'Cannot propagate error message to client because headers have already been sent',
+						);
+					} else {
 						response.writeHead(500);
 						response.write(JSON.stringify({error: err.stack}));
 					}