Log all errors to console.error by default (#21130)

packages/react-client/src/__tests__/ReactFlight-test.js

@@ -156,10 +156,15 @@ describe('ReactFlight', () => {
       return <div ref={ref} />;
     }
 
-    const event = ReactNoopFlightServer.render(<EventHandlerProp />);
-    const fn = ReactNoopFlightServer.render(<FunctionProp />);
-    const symbol = ReactNoopFlightServer.render(<SymbolProp />);
-    const refs = ReactNoopFlightServer.render(<RefProp />);
+    const options = {
+      onError() {
+        // ignore
+      },
+    };
+    const event = ReactNoopFlightServer.render(<EventHandlerProp />, options);
+    const fn = ReactNoopFlightServer.render(<FunctionProp />, options);
+    const symbol = ReactNoopFlightServer.render(<SymbolProp />, options);
+    const refs = ReactNoopFlightServer.render(<RefProp />, options);
 
     function Client({transport}) {
       return ReactNoopFlightClient.read(transport);
@@ -213,7 +218,11 @@ describe('ReactFlight', () => {
       );
     }
 
-    const data = ReactNoopFlightServer.render(<Server />);
+    const data = ReactNoopFlightServer.render(<Server />, {
+      onError(x) {
+        // ignore
+      },
+    });
 
     function Client({transport}) {
       return ReactNoopFlightClient.read(transport);

packages/react-server/src/ReactFizzServer.js

@@ -142,13 +142,17 @@ type Request = {
 // 500 * 1024 / 8 * .8 * 0.5 / 2
 const DEFAULT_PROGRESSIVE_CHUNK_SIZE = 12800;
 
+function defaultErrorHandler(error: mixed) {
+  console['error'](error); // Don't transform to our wrapper
+}
+
 export function createRequest(
   children: ReactNodeList,
   destination: Destination,
   responseState: ResponseState,
   rootContext: FormatContext,
   progressiveChunkSize: number = DEFAULT_PROGRESSIVE_CHUNK_SIZE,
-  onError: (error: mixed) => void = noop,
+  onError: (error: mixed) => void = defaultErrorHandler,
   onCompleteAll: () => void = noop,
   onReadyToStream: () => void = noop,
 ): Request {

packages/react-server/src/ReactFlightServer.js

@@ -91,7 +91,9 @@ export type Request = {
 
 const ReactCurrentDispatcher = ReactSharedInternals.ReactCurrentDispatcher;
 
-function defaultErrorHandler() {}
+function defaultErrorHandler(error: mixed) {
+  console['error'](error); // Don't transform to our wrapper
+}
 
 export function createRequest(
   model: ReactModel,