我有使用流明开发的API。我可以使用邮递员得到请求。但是当使用Jquery.ajax进行请求时，它不起作用。因此，我需要知道如何在流明API中启用CORS。
我有一个带有调试配置的简单 Flutter 应用程序。在我更改 gradle 配置和其他内容以在发布模式下构建 apk 之后。我根据文档完成了所有配置并且发布构建工作正常。但是现在我无法在调试模式下运行应用程序。它显示这个错误
I/flutter (15809): Observatory server failed to start after 11 tries
I/flutter (15809): Could not start Observatory HTTP server:
I/flutter (15809): SocketException: Failed to create server socket (OS Error: Permission denied, errno = 13), address = 127.0.0.1, port = 0
I/flutter (15809): #0 _NativeSocket.bind (dart:io/runtime/binsocket_patch.dart:545:7)
I/flutter (15809): <asynchronous suspension>
I/flutter (15809): #1 _RawServerSocket.bind (dart:io/runtime/binsocket_patch.dart:1138:10)
I/flutter (15809): #2 _ServerSocket.bind (dart:io/runtime/binsocket_patch.dart:1385:10)
I/flutter (15809): #3 ServerSocket.bind (dart:io/runtime/binsocket_patch.dart:1375:26)
I/flutter (15809): #4 _HttpServer.bind (dart:_http/http_impl.dart:2503:10)
I/flutter (15809): #5 HttpServer.bind (dart:_http:276:19) …