Suppressing asynchronous exceptions to avoid app crashes

[lawsbear]

App crash stackTrace:

Unhandled exception:
No resource with given identifier found
#0      NetworkApi.getResponseBody (package:puppeteer/protocol/network.dart:299:18)
<asynchronous suspension>
#1      Response.content.<anonymous closure> (package:puppeteer/src/page/network_manager.dart:573:12)
<asynchronous suspension>
#2      _RootZone.runUnary (dart:async/zone.dart:1379:54)
#3      _FutureListener.handleValue (dart:async/future_impl.dart:137:18)
#4      Future._propagateToListeners.handleValueCallback (dart:async/future_impl.dart:678:45)
#5      Future._propagateToListeners (dart:async/future_impl.dart:707:32)
#6      Future._completeWithValue (dart:async/future_impl.dart:522:5)
#7      Future._asyncComplete.<anonymous closure> (dart:async/future_impl.dart:552:7)
#8      _microtaskLoop (dart:async/schedule_microtask.dart:41:21)
#9      _startMicrotaskLoop (dart:async/schedule_microtask.dart:50:5)
#10     _runPendingImmediateCallback (dart:isolate-patch/isolate_patch.dart:116:13)
#11     _RawReceivePortImpl._handleMessage (dart:isolate-patch/isolate_patch.dart:173:5)

[xvrh]

Hello @caybear,
Thanks for the contribution :-)

Can give an example when this crash happens? (ideally a small reproduction script)

[lawsbear]

@xvrh This code will crash the app.
Execute this command "chrome.exe --remote-debugging-port=9222" before execute following code please.

import 'dart:convert';
import 'dart:io';

import 'package:puppeteer/puppeteer.dart';

final httpClient = HttpClient();

main(List<String> arguments) async {
  /**
   * Get browser endpoint.
   *
   * clientInfo['webSocketDebuggerUrl'].
   */
  String endpoint;
  try {
    final HttpClientRequest request =
        await httpClient.getUrl(Uri.parse('http://127.0.0.1:9222/json/version'));
    final HttpClientResponse response = await request.close();
    final Map<String, dynamic> clientInfo = jsonDecode(await utf8.decoder.bind(response).join(''));
    endpoint = clientInfo['webSocketDebuggerUrl'];
  } on Exception catch (message) {
    print(message);
    return;
  }

  final browser = await puppeteer.connect(browserWsEndpoint: endpoint);
  final webPage = await browser.newPage();
  webPage.onResponse.listen((response) async {
    if (response.url.contains('xiaohei.jpg')) print((await response.content).length);
  });

  await webPage.goto('https://produce.unimap.ai:12080/dart.html', wait: Until.domContentLoaded);
}