[dwds] [webdev] Loading injected client script fails in aot mode.

[schultek]

When running dwds in aot mode (e.g. dart install webdev) the injected client loading fails due to the following lines not working correctly:

webdev/dwds/lib/src/handlers/injector.dart

Lines 47 to 52 in 38d7818

	final uri = await Isolate.resolvePackageUri(
	Uri.parse('package:$_clientScript.js'),
	);
	if (uri == null) {
	throw StateError('Cannot resolve "package:$_clientScript.js"');
	}

This causes the following error when running webdev serve and trying to load the website:

GET /dwds/src/injected/client.js
Error thrown by handler.
Bad state: Cannot resolve "package:dwds/src/injected/client.js"
package:shelf/shelf_io.dart 91                   serveRequests
package:webdev/src/util.dart 25                  serveHttpRequests.<fn>
package:stack_trace                              Chain.capture
package:webdev/src/util.dart 24                  serveHttpRequests
package:webdev/src/serve/webdev_server.dart 300  WebDevServer.start

@bkonyi

[jyameo]

Thanks for the report @schultek! Could you please clarify a couple of details to help us investigate?

• Environment: What OS are you using?
• Dart Version: What is the output of dart --version?

[schultek]

Dart SDK version: 3.10.0 (stable) (Thu Nov 6 05:24:55 2025 -0800) on "macos_arm64"

[jyameo]

Thanks for sharing these details @schultek. Will look into this and provide updates once I have more information.

[Varadraj75]

• Reproduced locally on macOS (ARM) with Dart 3.10.x using dart install webdev (AOT); fails with Cannot resolve package:dwds/src/injected/client.js, while dart run webdev serve works.
• Root cause appears to be use of Isolate.resolvePackageUri for a JS asset in AOT; proposing to avoid package URI resolution by using an AOT-safe approach (e.g. embedding the injected client JS).
• I plan to raise a PR addressing this, pending maintainer feedback on the approach.