diff --git a/modules/angular2/http.ts b/modules/angular2/http.ts
index 6bb008b357..1703c54888 100644
--- a/modules/angular2/http.ts
+++ b/modules/angular2/http.ts
@@ -34,14 +34,7 @@ export {Http, Jsonp} from './src/http/http';
 
 export {Headers} from './src/http/headers';
 
-export {
-  ResponseTypes,
-  ReadyStates,
-  RequestMethods,
-  RequestCredentialsOpts,
-  RequestCacheOpts,
-  RequestModesOpts
-} from './src/http/enums';
+export {ResponseTypes, ReadyStates, RequestMethods} from './src/http/enums';
 export {URLSearchParams} from './src/http/url_search_params';
 
 /**
diff --git a/modules/angular2/src/http/base_request_options.ts b/modules/angular2/src/http/base_request_options.ts
index a20ee93967..eac87c0b53 100644
--- a/modules/angular2/src/http/base_request_options.ts
+++ b/modules/angular2/src/http/base_request_options.ts
@@ -1,6 +1,6 @@
 import {CONST_EXPR, CONST, isPresent, isString} from 'angular2/src/core/facade/lang';
 import {Headers} from './headers';
-import {RequestModesOpts, RequestMethods, RequestCacheOpts, RequestCredentialsOpts} from './enums';
+import {RequestMethods} from './enums';
 import {RequestOptionsArgs} from './interfaces';
 import {Injectable} from 'angular2/src/core/di';
 import {URLSearchParams} from './url_search_params';
@@ -30,19 +30,12 @@ export class RequestOptions {
    */
   // TODO: support FormData, Blob, URLSearchParams
   body: string;
-  mode: RequestModesOpts;
-  credentials: RequestCredentialsOpts;
-  cache: RequestCacheOpts;
   url: string;
   search: URLSearchParams;
-  constructor({method, headers, body, mode, credentials, cache, url, search}:
-                  RequestOptionsArgs = {}) {
+  constructor({method, headers, body, url, search}: RequestOptionsArgs = {}) {
     this.method = isPresent(method) ? method : null;
     this.headers = isPresent(headers) ? headers : null;
     this.body = isPresent(body) ? body : null;
-    this.mode = isPresent(mode) ? mode : null;
-    this.credentials = isPresent(credentials) ? credentials : null;
-    this.cache = isPresent(cache) ? cache : null;
     this.url = isPresent(url) ? url : null;
     this.search = isPresent(search) ? (isString(search) ? new URLSearchParams(<string>(search)) :
                                                           <URLSearchParams>(search)) :
@@ -58,10 +51,6 @@ export class RequestOptions {
       method: isPresent(options) && isPresent(options.method) ? options.method : this.method,
       headers: isPresent(options) && isPresent(options.headers) ? options.headers : this.headers,
       body: isPresent(options) && isPresent(options.body) ? options.body : this.body,
-      mode: isPresent(options) && isPresent(options.mode) ? options.mode : this.mode,
-      credentials: isPresent(options) && isPresent(options.credentials) ? options.credentials :
-                                                                          this.credentials,
-      cache: isPresent(options) && isPresent(options.cache) ? options.cache : this.cache,
       url: isPresent(options) && isPresent(options.url) ? options.url : this.url,
       search: isPresent(options) && isPresent(options.search) ?
                   (isString(options.search) ? new URLSearchParams(<string>(options.search)) :
@@ -91,7 +80,5 @@ export class RequestOptions {
  */
 @Injectable()
 export class BaseRequestOptions extends RequestOptions {
-  constructor() {
-    super({method: RequestMethods.Get, headers: new Headers(), mode: RequestModesOpts.Cors});
-  }
+  constructor() { super({method: RequestMethods.Get, headers: new Headers()}); }
 }
diff --git a/modules/angular2/src/http/enums.ts b/modules/angular2/src/http/enums.ts
index b6ef3da811..322131e63c 100644
--- a/modules/angular2/src/http/enums.ts
+++ b/modules/angular2/src/http/enums.ts
@@ -1,38 +1,5 @@
 import {StringMap, StringMapWrapper} from 'angular2/src/core/facade/collection';
 
-/**
- * Acceptable origin modes to be associated with a {@link Request}, based on
- * [RequestMode](https://fetch.spec.whatwg.org/#requestmode) from the Fetch spec.
- */
-export enum RequestModesOpts {
-  Cors,
-  NoCors,
-  SameOrigin
-}
-
-/**
- * Acceptable cache option to be associated with a {@link Request}, based on
- * [RequestCache](https://fetch.spec.whatwg.org/#requestcache) from the Fetch spec.
- */
-export enum RequestCacheOpts {
-  Default,
-  NoStore,
-  Reload,
-  NoCache,
-  ForceCache,
-  OnlyIfCached
-}
-
-/**
- * Acceptable credentials option to be associated with a {@link Request}, based on
- * [RequestCredentials](https://fetch.spec.whatwg.org/#requestcredentials) from the Fetch spec.
- */
-export enum RequestCredentialsOpts {
-  Omit,
-  SameOrigin,
-  Include
-}
-
 /**
  * Supported http methods.
  */
diff --git a/modules/angular2/src/http/interfaces.ts b/modules/angular2/src/http/interfaces.ts
index 8f07564ffc..aa3173d1da 100644
--- a/modules/angular2/src/http/interfaces.ts
+++ b/modules/angular2/src/http/interfaces.ts
@@ -1,11 +1,4 @@
-import {
-  ReadyStates,
-  RequestModesOpts,
-  RequestMethods,
-  RequestCacheOpts,
-  RequestCredentialsOpts,
-  ResponseTypes
-} from './enums';
+import {ReadyStates, RequestMethods, ResponseTypes} from './enums';
 import {Headers} from './headers';
 import {BaseException, WrappedException} from 'angular2/src/core/facade/exceptions';
 import {EventEmitter} from 'angular2/src/core/facade/async';
@@ -49,9 +42,6 @@ export interface RequestOptionsArgs {
   headers?: Headers;
   // TODO: Support Blob, ArrayBuffer, JSON, URLSearchParams, FormData
   body?: string;
-  mode?: RequestModesOpts;
-  credentials?: RequestCredentialsOpts;
-  cache?: RequestCacheOpts;
 }
 
 /**
diff --git a/modules/angular2/src/http/static_request.ts b/modules/angular2/src/http/static_request.ts
index 4d182b3ced..19595221ad 100644
--- a/modules/angular2/src/http/static_request.ts
+++ b/modules/angular2/src/http/static_request.ts
@@ -1,4 +1,4 @@
-import {RequestMethods, RequestModesOpts, RequestCredentialsOpts, RequestCacheOpts} from './enums';
+import {RequestMethods} from './enums';
 import {RequestOptions} from './base_request_options';
 import {Headers} from './headers';
 import {
@@ -26,8 +26,6 @@ export class Request {
    * Defaults to GET.
    */
   method: RequestMethods;
-  mode: RequestModesOpts;
-  credentials: RequestCredentialsOpts;
   /**
    * Headers object based on the `Headers` class in the [Fetch
    * Spec](https://fetch.spec.whatwg.org/#headers-class). {@link Headers} class reference.
@@ -37,7 +35,6 @@ export class Request {
   url: string;
   // TODO: support URLSearchParams | FormData | Blob | ArrayBuffer
   private _body: string;
-  cache: RequestCacheOpts;
   constructor(requestOptions: RequestOptions) {
     // TODO: assert that url is present
     let url = requestOptions.url;
@@ -56,12 +53,9 @@ export class Request {
     this._body = requestOptions.body;
     this.method = requestOptions.method;
     // TODO(jeffbcross): implement behavior
-    this.mode = requestOptions.mode;
     // Defaults to 'omit', consistent with browser
     // TODO(jeffbcross): implement behavior
-    this.credentials = requestOptions.credentials;
     this.headers = new Headers(requestOptions.headers);
-    this.cache = requestOptions.cache;
   }
 
 
diff --git a/modules/angular2/test/http/base_request_options_spec.ts b/modules/angular2/test/http/base_request_options_spec.ts
index 13144695bb..9ec405a98b 100644
--- a/modules/angular2/test/http/base_request_options_spec.ts
+++ b/modules/angular2/test/http/base_request_options_spec.ts
@@ -10,7 +10,7 @@ import {
   xit
 } from 'angular2/test_lib';
 import {BaseRequestOptions, RequestOptions} from 'angular2/src/http/base_request_options';
-import {RequestMethods, RequestModesOpts} from 'angular2/src/http/enums';
+import {RequestMethods} from 'angular2/src/http/enums';
 
 export function main() {
   describe('BaseRequestOptions', () => {
@@ -24,9 +24,7 @@ export function main() {
     it('should retain previously merged values when merging again', () => {
       var options1 = new BaseRequestOptions();
       var options2 = options1.merge(new RequestOptions({method: RequestMethods.Delete}));
-      var options3 = options2.merge(new RequestOptions({mode: RequestModesOpts.NoCors}));
-      expect(options3.mode).toBe(RequestModesOpts.NoCors);
-      expect(options3.method).toBe(RequestMethods.Delete);
+      expect(options2.method).toBe(RequestMethods.Delete);
     });
   });
 }