Error: XMLHttpRequest error. #34
Description
var data = await MetadataFetch.extract(
'https://flutter.dev'); // returns a Metadata object
print(data); // Metadata.toString()
print(data?.title); // Metadata.title
print(data?.toMap()); // converts Metadata to map
print(data?.toJson()); // converts Metadata to JSON
I tried to get the title tag of website in a web browser on my local host, but it failed. It also fails in the production environment because of this error. I'm sure the cross-domain error has something to do with it, but how can I get the meta tags in my web browser?
Error: XMLHttpRequest error.
dart-sdk/lib/_internal/js_dev_runtime/patch/core_patch.dart 909:28 get current
packages/http/src/browser_client.dart 71:22 <fn>
dart-sdk/lib/async/zone.dart 1613:54 runUnary
dart-sdk/lib/async/future_impl.dart 155:18 handleValue
dart-sdk/lib/async/future_impl.dart 707:44 handleValueCallback
dart-sdk/lib/async/future_impl.dart 736:13 _propagateToListeners
dart-sdk/lib/async/future_impl.dart 533:7 [_complete]
dart-sdk/lib/async/stream_pipe.dart 61:11 _cancelAndValue
dart-sdk/lib/async/stream.dart 1219:7 <fn>
dart-sdk/lib/_internal/js_dev_runtime/private/ddc_runtime/operations.dart 324:14 _checkAndCall
dart-sdk/lib/_internal/js_dev_runtime/private/ddc_runtime/operations.dart 329:39 dcall
dart-sdk/lib/html/dart2js/html_dart2js.dart 37307:58 <fn>
at Object.createErrorWithStack (http://localhost:7357/dart_sdk.js:5054:12)
at Object._rethrow (http://localhost:7357/dart_sdk.js:37670:16)
at async._AsyncCallbackEntry.new.callback (http://localhost:7357/dart_sdk.js:37666:13)
at Object._microtaskLoop (http://localhost:7357/dart_sdk.js:37526:13)
at _startMicrotaskLoop (http://localhost:7357/dart_sdk.js:37532:13)
at http://localhost:7357/dart_sdk.js:33303:9