See Wire JS issue #137
I'm running into an into an issue where thrown errors are being caught -- and seemingly released into the ether -- within the Wire JS Promise library (when).
It took a few tries to reproduce, as the original application was fairly complex. But I have a sample now up at eschwartz/when-exceptions. Run index.html and check your console -- expected behavior is to have an error thrown to the console.
The sample is dead simple -- a Foo module loads in a wired context. The Foo#bar method throws an error. The application pulls in Foo with RequireJS, instantiates it, and invokes the bar method.
But the error gets caught inside of the when library, here:
// when.js line 408
function near(proxy, inspect) {
return new Promise(function (type, args, resolve) {
try {
resolve(proxy[type].apply(proxy, args));
} catch(e) {
resolve(rejected(e)); // Oh no... my error!!!
}
}, inspect);
}I am using the most recent versions of wire, when, and meld.
What's happening here? I wouldn't expect errors in this situation to be caught. Can I hook into the promise being referenced in the near method? Can I avoid this situation entirely, and let my errors be thrown?
I'm having a lot of fun with this library, so I hope this can be fixed, or worked-around. Thanks!