ParsingXML from string with type text/xml as default one for document response type

Author: muthurathinam-m

CHANGELOG.md

@@ -13,6 +13,7 @@ Bug Fixes
 
 ### 1.2.0
 Updates
+
 * Two output js files, one with polyfills for Fetch-API and ES6-Promises ([lib/graph-js-sdk-web.js](./lib/graph-js-sdk-web.js)) and one without ([lib/graph-js-sdk-core.js](./lib/graph-js-sdk-core.js))
 [Refer [README.md](https://github.com/microsoftgraph/msgraph-sdk-javascript#browser) for usage]
 * Enum for ResponseType, which lists down the available ResponseType options in autocomplete

lib/graph-js-sdk-core.js

@@ -478,7 +478,7 @@ export class GraphRequest {
                 responseValue = response.blob();
                 break;
             case ResponseType.DOCUMENT:
-                responseValue = self.parseDocumentResponse(response, "text/html");
+                responseValue = self.parseDocumentResponse(response, "text/xml");
                 break;
             case ResponseType.JSON:
                 responseValue = response.json();