Default headers for XHR

[dhritzkiv]

Perhaps the default headers passed to XHR should be

{
    "Accept": "application/json"
}

I think it makes sense since the model is expecting JSON. I've been otherwise having to add this to ajaxConfig for all my models.

Thoughts?

[mikehedman]

@dhritzkiv - making the change you identify fixed my problem of receiving xml responses. It seems that the default Accept header is "text/html,application/xhtml+xml,application/xml;q=0.9,/;q=0.8", which I think is just the default that node's http module uses.
I'd vote for setting Ampersand's default to json.

[mikehedman]

I've submitted a pull request to ampersand-sync to implement this suggestion:
AmpersandJS/ampersand-sync#24

[pgilad]

Hey @mikehedman I think this will be fixed with new &-sync version. Can you verify?