Can't run webview inside napi asyncWorker

[boblund]

MacOS Ventura 13.2.1

NodeJS node-addon-api (C++)
Node v18.15.0
Apple clang version 14.0.0 (clang-1400.0.29.202)
Target: arm64-apple-darwin22.3.0
Thread model: posix

What did you expect to see and what you saw instead?

I am trying to run webview in a node-addon-api asyncWorker. Here's the code.

const auto html =
    R"html(
	<div id='hi'></div>
	<button id="increment">Tap me</button>
	<div>You tapped <span id="count">0</span> times.</div>
    )html";


SimpleAsyncWorker::SimpleAsyncWorker(Function& callback, int runTime)
    : AsyncWorker(callback), runTime(runTime) {};

void SimpleAsyncWorker::Execute() {
  w.bind("noop", [](std::string s) -> std::string {
    return s;
  });

  w.set_title("Basic Example");
  w.set_size(480, 320, WEBVIEW_HINT_NONE);
  w.set_html(html);
  w.run();
};

I expect a webview running the sample HTML. Instead I get:

node[36401:5455931] *** NSForwarding: warning: object 0x6000010a0000 of class 'WebviewAppDelegate'
     does not implement methodSignatureForSelector: -- trouble ahead
node[36401:5455931] *** NSForwarding: warning: object 0x6000010a0000 of class 'WebviewAppDelegate' 
     does not implement doesNotRecognizeSelector: -- abort

I can run this successfully in node-addon-api without the asyncWorker.

I searched for the cause of this and the nearest I could find was that objectivec and V8 both define a class called 'Object'. Is this the cause? Is there a workaround or is it not possible to run webview asynchronously in a node-addon-api. Any help is appreciated.