application.js

//BUGFIX: Chromeframe miss some features.
(function($) {
	$.oldAjax = $.ajax;
	
	$.ajax = function(o) {
		// I can't detect it by navigator.userAgent. So I set it on server side.
		if (navigator.chromeframe) {
			// Chromeframe can't send DELETE and PUT verb.
			if (o.type == "DELETE") {
				o.type = "POST";
				o.data = "_method=delete";
			} else if (o.type == "PUT") {
				o.type = "POST";
				o.data += "&_method=put";
			}
		}
		
		// Chromeframe send incorrect ajax type make rails process the request by */*. The right way is JS. I try many way to avoid this. But I can do this with append .js to url only.
		if (o.dataType == "script" && !/\.js$/.test(o.url)) {
			o.url += ".js";
			// Webkit try parse result to json then raise a syntax error when receive html. It appear in inspector only and user can't see that except u r a developer. The url(end of .js) has told rails how to process my request. So I set dataType as text because I need respondText only. I can parse json myself.
			o.dataType = "text";
		}
		
		$.oldAjax(o);
	};
});