Bring back NetworkError column

src/features/ui/components/error-column.tsx

@@ -0,0 +1,45 @@
+import React from 'react';
+import { defineMessages, useIntl } from 'react-intl';
+
+import { Column, Stack, Text, IconButton } from 'soapbox/components/ui';
+import { isNetworkError } from 'soapbox/utils/errors';
+
+const messages = defineMessages({
+  title: { id: 'bundle_column_error.title', defaultMessage: 'Network error' },
+  body: { id: 'bundle_column_error.body', defaultMessage: 'Something went wrong while loading this page.' },
+  retry: { id: 'bundle_column_error.retry', defaultMessage: 'Try again' },
+});
+
+interface IErrorColumn {
+  error: Error;
+  onRetry?: () => void;
+}
+
+const ErrorColumn: React.FC<IErrorColumn> = ({ error, onRetry = () => location.reload() }) => {
+  const intl = useIntl();
+
+  const handleRetry = () => {
+    onRetry?.();
+  };
+
+  if (!isNetworkError(error)) {
+    throw error;
+  }
+
+  return (
+    <Column label={intl.formatMessage(messages.title)}>
+      <Stack space={4} alignItems='center' justifyContent='center' className='min-h-[160px] rounded-lg p-10'>
+        <IconButton
+          iconClassName='h-10 w-10'
+          title={intl.formatMessage(messages.retry)}
+          src={require('@tabler/icons/refresh.svg')}
+          onClick={handleRetry}
+        />
+
+        <Text align='center' theme='muted'>{intl.formatMessage(messages.body)}</Text>
+      </Stack>
+    </Column>
+  );
+};
+
+export default ErrorColumn;

src/features/ui/util/react-router-helpers.tsx

@@ -1,4 +1,5 @@
-import React, { Suspense } from 'react';
+import React, { ComponentProps, Suspense } from 'react';
+import { ErrorBoundary } from 'react-error-boundary';
 import { Redirect, Route, useHistory, RouteProps, RouteComponentProps, match as MatchType } from 'react-router-dom';
 
 import { Layout } from 'soapbox/components/ui';
@@ -7,6 +8,7 @@ import { useOwnAccount, useSettings } from 'soapbox/hooks';
 import ColumnForbidden from '../components/column-forbidden';
 import ColumnLoading from '../components/column-loading';
 import ColumnsArea from '../components/columns-area';
+import ErrorColumn from '../components/error-column';
 
 type PageProps = {
   params?: MatchType['params'];
@@ -46,24 +48,28 @@ const WrappedRoute: React.FC<IWrappedRoute> = ({
   const renderComponent = ({ match }: RouteComponentProps) => {
     if (Page) {
       return (
-        <Suspense fallback={renderLoading()}>
-          <Page params={match.params} layout={layout} {...componentParams}>
-            <Component params={match.params} {...componentParams}>
-              {content}
-            </Component>
-          </Page>
-        </Suspense>
+        <ErrorBoundary FallbackComponent={renderError}>
+          <Suspense fallback={renderLoading()}>
+            <Page params={match.params} layout={layout} {...componentParams}>
+              <Component params={match.params} {...componentParams}>
+                {content}
+              </Component>
+            </Page>
+          </Suspense>
+        </ErrorBoundary>
       );
     }
 
     return (
-      <Suspense fallback={renderLoading()}>
-        <ColumnsArea layout={layout}>
-          <Component params={match.params} {...componentParams}>
-            {content}
-          </Component>
-        </ColumnsArea>
-      </Suspense>
+      <ErrorBoundary FallbackComponent={renderError}>
+        <Suspense fallback={renderLoading()}>
+          <ColumnsArea layout={layout}>
+            <Component params={match.params} {...componentParams}>
+              {content}
+            </Component>
+          </ColumnsArea>
+        </Suspense>
+      </ErrorBoundary>
     );
   };
 
@@ -79,6 +85,7 @@ const WrappedRoute: React.FC<IWrappedRoute> = ({
 
   const renderLoading = () => renderWithLayout(<ColumnLoading />);
   const renderForbidden = () => renderWithLayout(<ColumnForbidden />);
+  const renderError = (props: ComponentProps<typeof ErrorColumn>) => renderWithLayout(<ErrorColumn {...props} />);
 
   const loginRedirect = () => {
     const actualUrl = encodeURIComponent(`${history.location.pathname}${history.location.search}`);

src/utils/errors.ts

@@ -200,4 +200,11 @@ const httpErrorMessages: { code: number; name: string; description: string }[] =
   },
 ];
 
-export { buildErrorMessage, httpErrorMessages };
+/** Whether the error is caused by a JS chunk failing to load. */
+function isNetworkError(error: unknown): boolean {
+  return error instanceof Error
+    && error.name === 'TypeError'
+    && error.message.startsWith('Failed to fetch dynamically imported module: ');
+}
+
+export { buildErrorMessage, httpErrorMessages, isNetworkError };