Include configuration headers

README.md

@@ -319,5 +319,18 @@ then simply place this snippet at the top of your code:
 $.ajax.compat && $.ender({ ajax: $.ajax.compat });
 ```
 
+### Configuration headers ###
+Headers that are common for all requests.
+```js
+reqwest.headers.common = {
+  "Accept-Language" : "es"
+};
+```
+Header defaults for GET request
+```js
+reqwest.headers.get = {
+  "Accept-Language" : "en"
+};
+```
 
 **Happy Ajaxing!**

package.json

@@ -10,7 +10,7 @@
     "async",
     "sync"
   ],
-  "version": "2.0.5",
+  "version": "2.0.6",
   "homepage": "https://github.com/ded/reqwest",
   "author": "Dustin Diaz <[email protected]> (http://dustindiaz.com)",
   "repository": {

reqwest.js

@@ -12,7 +12,7 @@
 
   var context = this
 
-  if ('window' in context) {
+  if ('document' in context) {
     var doc = document
       , byTag = 'getElementsByTagName'
       , head = doc[byTag]('head')[0]
@@ -25,7 +25,6 @@
     }
   }
 
-
   var httpsRe = /^http/
     , protocolRe = /(^\w+):\/\//
     , twoHundo = /^(20\d|1223)$/ //http://stackoverflow.com/questions/10046972/msie-returns-status-code-of-1223-for-ajax-request
@@ -65,6 +64,11 @@
           if (xhr && 'withCredentials' in xhr) {
             return xhr
           } else if (context[xDomainRequest]) {
+            var protocolRegExp = /^https?/;
+            if (window.location.href.match(protocolRegExp)[0] !== o.url.match(protocolRegExp)[0]) {
+              throw new Error('XDomainRequest: requests must be targeted to the same scheme as the hosting page.')
+              // As per: http://blogs.msdn.com/b/ieinternals/archive/2010/05/13/xdomainrequest-restrictions-limitations-and-workarounds.aspx
+            }
             return new XDomainRequest()
           } else {
             throw new Error('Browser does not support cross-origin requests')
@@ -106,8 +110,11 @@
 
   function setHeaders(http, o) {
     var headers = o['headers'] || {}
+      , method = (o['method'] || 'get').toLowerCase()
       , h
 
+    headers = includeDefaultHeaders(headers, method);
+
     headers['Accept'] = headers['Accept']
       || defaultHeaders['accept'][o['type']]
       || defaultHeaders['accept']['*']
@@ -196,7 +203,7 @@
 
   function getRequest(fn, err) {
     var o = this.o
-      , method = (o['method'] || 'GET').toUpperCase()
+      , method = o['method'] = (o['method'] || 'GET').toUpperCase()
       , url = typeof o === 'string' ? o : o['url']
       // convert non-string objects to query-string form unless o['processData'] is false
       , data = (o['processData'] !== false && o['data'] && typeof o['data'] !== 'string')
@@ -626,5 +633,30 @@
     }
   }
 
+  // headers that are common for all requests
+  reqwest.headers = { common : {}};
+
+  function isEmpty(value) {
+    return (value || '').trim().length === 0
+  }
+
+  function includeDefaultHeaders(headers, method) {
+    var common;
+    var methodHeaders = reqwest.headers[method] || {};
+    for (common in reqwest.headers.common) {
+      if (!isEmpty(common) && !(common in headers) && !(common in methodHeaders)) {
+        headers[common] = reqwest.headers.common[common];
+      }
+    }
+
+    var option;
+    for (option in methodHeaders) {
+      if (!isEmpty(option) && !(option in headers)) {
+        headers[option] = methodHeaders[option];
+      }
+    }
+    return headers;
+  }
+
   return reqwest
 });