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node_modules/xhr-status/index.js

@@ -0,0 +1,55 @@
+'use strict';
+
+/**
+ * Get the correct status code for a given XHR request.
+ *
+ * @param {XHR} xhr A XHR request who's status code needs to be retrieved.
+ * @returns {Object}
+ * @api public
+ */
+module.exports = function status(xhr) {
+  var local = /^file:/.test(xhr.responseURL)
+    , code = xhr.status
+    , text = '';
+
+  //
+  // Older version IE incorrectly return status code 1233 for requests that
+  // respond with a 204 header.
+  //
+  // @see http://stackoverflow.com/q/10046972
+  //
+  if (1233 === code) return {
+    error: false,
+    text: 'OK',
+    code: 204
+  };
+
+  //
+  // If you make a request with a file:// protocol it returns status code 0 by
+  // default so we're going to assume 200 instead. But if you do a HTTP request
+  // to dead server you will also get the same 0 response code in chrome. So
+  // we're going to assume statusCode 200 for local files.
+  //
+  if (0 === code) return local ? {
+    error: false,
+    text: 'OK',
+    code: 200
+  } : {
+    error: true,
+    text: 'An unknown error occured',
+    code: 0
+  };
+
+  //
+  // FireFox will throw an error when accessing the statusText on faulty
+  // cross-domain requests.
+  //
+  try { text = xhr.statusText; }
+  catch (e) {}
+
+  return {
+    error: code >= 400,
+    text: text,
+    code: code
+  };
+};