Add content type when possible

README.md

@@ -18,4 +18,9 @@ If supplied, the *done* callback must have signature (err, res). The request is
  * *res.text*: the raw response body.
  * *res.json*: the response body parsed as JSON, if it is valid JSON.
 
-All functions return an object with properties *method*, *url*, *data* and *req* (the underlying request object). Properties *err* and *res* are set when the request completes. Call *abort()* on the object to abort the request.
+All functions return an object with properties *method*, *url*, *data* and *req* (the underlying request object). Properties *err* and *res* are set when the request completes. Call *abort()* on the object to abort the request.
+
+
+## Content-Type ##
+
+Using XDomainRequest it is not possible to set the request's `Content-Type` header. If using express, [express-ie-cors](https://github.com/advanced/express-ie-cors) provides a workaround.

bower.json

@@ -1,6 +1,6 @@
 {
   "name": "corsRequest",
-  "version": "0.0.1",
+  "version": "0.0.2",
   "authors": [
     "Tiago Quelhas <tiagoq@gmail.com>"
   ],

corsRequest.js

@@ -81,9 +81,9 @@
   // Encode data to JSON representation or string, according to its type.
   function encode(data) {
     if (isObject(data)) {
-      return toJSON(data);
+      return { data: toJSON(data), contentType: 'application/json' };
     } else {
-      return data.toString();
+      return { data: data.toString(), contentType: 'text/plain' };
     }
   }
 
@@ -107,11 +107,6 @@
 
     this.req.open(this.method, this.url);
 
-    this.req.ontimeout = function() {
-      self.err = error('timeout');
-      done(self.err);
-    };
-
     this.req.onerror = function() {
       self.err = error('error');
       done(self.err);
@@ -138,9 +133,10 @@
       done(self.err, self.res);
     };
 
-    // Setting this handler seems to increase the probability
+    // Setting all handlers seems to increase the probability
     // of the request being sucessful on old IE versions.
     if (useXdr) {
+      this.req.ontimeout = noop;
       this.req.onprogress = noop;
     }
 
@@ -153,7 +149,11 @@
     };
 
     if (this.data !== void 0) {
-      var payload = encode(data);
+      encoded = encode(data)
+      var payload = encoded.data;
+      if(this.req.setRequestHeader) {
+        this.req.setRequestHeader('Content-Type', encoded.contentType);
+      }
     }
 
     // Calling send() right away sometimes causes the request
@@ -163,6 +163,15 @@
         self.req.send(payload || null);
       }
     }, 0);
+
+    // Perform our own timeout logic instead of relying on
+    // the underlying implementation.
+    setTimeout(function() {
+      if (self.err === void 0) {
+        self.err = error('timeout');
+        done(self.err);
+      }
+    }, corsRequest.timeout);
   }
 
 
@@ -203,6 +212,10 @@
   }
 
 
+  // Default timeout value.
+  corsRequest.timeout = 10000;
+
+
   // Report implementation in use.
   corsRequest.usingXhr = useXhr;
   corsRequest.usingXdr = useXdr;