fix(logs): remove warning logs for common/handled error events. (react-native-webview#2043)

* remove warning logs for common/handled error events.

* re-add warn logs, but only if not handled

Co-authored-by: Cristiano Coelho <[email protected]>

Author: cristianoccazinsp

src/WebView.android.tsx

@@ -211,13 +211,16 @@ class WebView extends React.Component<AndroidWebViewProps, State> {
   onLoadingError = (event: WebViewErrorEvent) => {
     event.persist(); // persist this event because we need to store it
     const { onError, onLoadEnd } = this.props;
+
     if (onError) {
       onError(event);
+    } else {
+      console.warn('Encountered an error loading page', event.nativeEvent);
     }
+
     if (onLoadEnd) {
       onLoadEnd(event);
     }
-    console.warn('Encountered an error loading page', event.nativeEvent);
 
     this.setState({
       lastErrorEvent: event.nativeEvent,

src/WebView.ios.tsx

@@ -195,13 +195,16 @@ class WebView extends React.Component<IOSWebViewProps, State> {
   onLoadingError = (event: WebViewErrorEvent) => {
     event.persist(); // persist this event because we need to store it
     const { onError, onLoadEnd } = this.props;
+
     if (onLoadEnd) {
       onLoadEnd(event);
     }
+
     if (onError) {
       onError(event);
+    } else {
+      console.warn('Encountered an error loading page', event.nativeEvent);
     }
-    console.warn('Encountered an error loading page', event.nativeEvent);
 
     this.setState({
       lastErrorEvent: event.nativeEvent,

src/WebView.macos.tsx

@@ -183,13 +183,16 @@ class WebView extends React.Component<MacOSWebViewProps, State> {
   onLoadingError = (event: WebViewErrorEvent) => {
     event.persist(); // persist this event because we need to store it
     const { onError, onLoadEnd } = this.props;
+
     if (onLoadEnd) {
       onLoadEnd(event);
     }
+
     if (onError) {
       onError(event);
+    } else {
+      console.warn('Encountered an error loading page', event.nativeEvent);
     }
-    console.warn('Encountered an error loading page', event.nativeEvent);
 
     this.setState({
       lastErrorEvent: event.nativeEvent,