Ignore xhr.status for "file://" requests.

request/request.js

@@ -2,6 +2,8 @@
 
 var buildQueryString = require("../querystring/build")
 
+var FILE_PROTOCOL_REGEX = new RegExp('^file://', 'i')
+
 module.exports = function($window, Promise) {
 	var callbackCount = 0
 
@@ -86,7 +88,7 @@ module.exports = function($window, Promise) {
 				if (xhr.readyState === 4) {
 					try {
 						var response = (args.extract !== extract) ? args.extract(xhr, args) : args.deserialize(args.extract(xhr, args))
-						if ((xhr.status >= 200 && xhr.status < 300) || xhr.status === 304) {
+						if ((xhr.status >= 200 && xhr.status < 300) || xhr.status === 304 || FILE_PROTOCOL_REGEX.test(args.url)) {
 							resolve(cast(args.type, response))
 						}
 						else {

request/tests/test-request.js

@@ -406,6 +406,23 @@ o.spec("xhr", function() {
 				done()
 			})
 		})
+		o("doesn't fail on file:// status 0", function(done) {
+			var s = new Date
+			mock.$defineRoutes({
+				"GET /item": function() {
+					return {status: 0, responseText: JSON.stringify({a: 1})}
+				}
+			})
+			var failed = false
+			xhr({method: "GET", url: "file:///item"}).catch(function() {
+				failed = true
+			}).then(function(data) {
+				o(failed).equals(false)
+				o(data).deepEquals({a: 1})
+			}).then(function() {
+				done()
+			})
+		})
 		/*o("data maintains after interpolate", function() {
 			mock.$defineRoutes({
 				"PUT /items/:x": function() {