扑来无法连接颤动中的API XMLHTTPREQUEST错误

Question

当我尝试运行Web应用程序时，Flutter无法连接API 我正在使用Auth API，它可以与Android和iOS一起使用，但我无法在Flutter-Web上工作。 这是错误

Login Button Pressed
Error: XMLHttpRequest error.
C:/b/s/w/ir/cache/builder/src/out/host_debug/dart-sdk/lib/_internal/js_dev_runtime/patch/core_patch.dart 910:28                get current
packages/http/src/browser_client.dart 69:22                                                                                    <fn>
C:/b/s/w/ir/cache/builder/src/out/host_debug/dart-sdk/lib/async/zone.dart 1685:54                                              runUnary
C:/b/s/w/ir/cache/builder/src/out/host_debug/dart-sdk/lib/async/future_impl.dart 159:18                                        handleValue
C:/b/s/w/ir/cache/builder/src/out/host_debug/dart-sdk/lib/async/future_impl.dart 766:44                                        handleValueCallback
C:/b/s/w/ir/cache/builder/src/out/host_debug/dart-sdk/lib/async/future_impl.dart 795:13                                        _propagateToListeners
C:/b/s/w/ir/cache/builder/src/out/host_debug/dart-sdk/lib/async/future_impl.dart 592:7                                         [_complete]
C:/b/s/w/ir/cache/builder/src/out/host_debug/dart-sdk/lib/async/stream_pipe.dart 61:11                                         _cancelAndValue
C:/b/s/w/ir/cache/builder/src/out/host_debug/dart-sdk/lib/async/stream.dart 1288:7                                             <fn>
C:/b/s/w/ir/cache/builder/src/out/host_debug/dart-sdk/lib/_internal/js_dev_runtime/private/ddc_runtime/operations.dart 334:14  _checkAndCall
C:/b/s/w/ir/cache/builder/src/out/host_debug/dart-sdk/lib/_internal/js_dev_runtime/private/ddc_runtime/operations.dart 339:39  dcall
C:/b/s/w/ir/cache/builder/src/out/host_debug/dart-sdk/lib/html/dart2js/html_dart2js.dart 37301:58                              <fn>
    at Object.createErrorWithStack (http://localhost:61429/dart_sdk.js:5080:12)
    at Function._throw (http://localhost:61429/dart_sdk.js:20337:18)
    at Function.throwWithStackTrace (http://localhost:61429/dart_sdk.js:20334:18)
    at async._AsyncCallbackEntry.new.callback (http://localhost:61429/dart_sdk.js:40851:18)
    at Object._microtaskLoop (http://localhost:61429/dart_sdk.js:40708:13)
    at _startMicrotaskLoop (http://localhost:61429/dart_sdk.js:40714:13)
    at http://localhost:61429/dart_sdk.js:36191:9