IE8 support is broken

[jpotterm]

First, IE8 doesn't support document.createEvent which is used in src/events/addeventlistenerpolyfill.js. The last working version is 6.0.0.

Second, requests via Rx.DOM.get never complete in IE8. Last working version for this is (ironically) 4.0.4. Here's a minimal example to demonstrate:

function logStart() {
    console.log('start');
}

function logEnd(data) {
    console.log('end');
}

var requests = Rx.Observable.just(1);
var responses = requests.flatMap(function() {
    return Rx.DOM.get('.');
});

requests.subscribe(logStart);
responses.subscribe(logEnd);

It should print

start
end

But in IE8 with any version of RxJS-DOM later than 4.0.4 it only prints start.

[mattpodwysocki]

@jpotterm can you verify the fix with the latest RxJS and RxJS-DOM for events?

[jpotterm]

I'm still having the problem with requests never returning (see the example code above). I can see the ajax request succeed in the inspector but the logEnd subscriber is never called.