Unable to debug web apps using latest Flutter master / SDK DAPs #4413
Description
When clicking the Dart Debug Extension button (edit: this happens on Chrome too, not specific to the debug extension), the connection is made but the app never loads.
Verbose logs contain this:
Connecting to VM Service at ws://127.0.0.1:54237/nxSUombw4hc=/ws
[ +107 ms] DevHandler: VmService proxy responded with an error:
{jsonrpc: 2.0, id: 16, error: {code: -32601, message: Method not found, data: {jsonrpc: 2.0, method: _setStreamIncludePrivateMembers, id: 16, params: {streamId: Isolate, includePrivateMembers: false}}}}
[ ] DevHandler: VmService proxy responded with an error:
{jsonrpc: 2.0, id: 17, error: {code: -32601, message: Method not found, data: {jsonrpc: 2.0, method: _setStreamIncludePrivateMembers, id: 17, params: {streamId: Debug, includePrivateMembers: false}}}}
[ ] DevHandler: VmService proxy responded with an error:
{jsonrpc: 2.0, id: 18, error: {code: -32601, message: Method not found, data: {jsonrpc: 2.0, method: _setStreamIncludePrivateMembers, id: 18, params: {streamId: Logging, includePrivateMembers: false}}}}
[ ] DevHandler: VmService proxy responded with an error:
{jsonrpc: 2.0, id: 19, error: {code: -32601, message: Method not found, data: {jsonrpc: 2.0, method: _setStreamIncludePrivateMembers, id: 19, params: {streamId: Extension, includePrivateMembers: false}}}}
[ ] DevHandler: VmService proxy responded with an error:
{jsonrpc: 2.0, id: 21, error: {code: -32601, message: The stream `ToolEvent` is not supported on web devices}}
[ +51 ms] ExpressionEvaluator: Evaluating "() => true" at packages/flutter/src/widgets/title.dart
[ +34 ms] ExpressionEvaluator: Evaluated "() => true" to "boolean true" for isolate 1
It's unclear which (if any) of these are causing the issue.