added default content type to POST and PATCH

User headers now overwrite default headers

Author: REDMOND\lahuey

lib/graph-js-sdk-web.js

@@ -144,11 +144,19 @@ var GraphRequest = (function () {
     };
     GraphRequest.prototype.patch = function (content, callback) {
         var url = this.buildFullUrl();
-        return this.sendRequestAndRouteResponse(new Request(url, { method: RequestMethod_1.RequestMethod.PATCH, body: content, headers: new Headers() }), callback);
+        return this.sendRequestAndRouteResponse(new Request(url, {
+            method: RequestMethod_1.RequestMethod.PATCH,
+            body: content,
+            headers: new Headers(({ 'Content-Type': 'application/json' }))
+        }), callback);
     };
     GraphRequest.prototype.post = function (content, callback) {
         var url = this.buildFullUrl();
-        return this.sendRequestAndRouteResponse(new Request(url, { method: RequestMethod_1.RequestMethod.POST, body: content, headers: new Headers() }), callback);
+        return this.sendRequestAndRouteResponse(new Request(url, {
+            method: RequestMethod_1.RequestMethod.POST,
+            body: content,
+            headers: new Headers(({ 'Content-Type': 'application/json' }))
+        }), callback);
     };
     GraphRequest.prototype.put = function (content, callback) {
         var url = this.buildFullUrl();
@@ -246,8 +254,8 @@ var GraphRequest = (function () {
     GraphRequest.prototype.configureRequest = function (request, accessToken) {
         var _this = this;
         request.headers.append('Authorization', 'Bearer ' + accessToken);
-        Object.keys(this._headers).forEach(function (key) { return request.headers.append(key, _this._headers[key]); });
         request.headers.append('SdkVersion', "graph-js-" + packageInfo.version);
+        Object.keys(this._headers).forEach(function (key) { return request.headers.set(key, _this._headers[key]); });
         return request;
     };
     GraphRequest.prototype.query = function (queryDictionaryOrString) {