diff --git a/isomorphic-fetch/isomorphic-fetch-tests.ts b/isomorphic-fetch/isomorphic-fetch-tests.ts
new file mode 100644
index 000000000..3235912ac
--- /dev/null
+++ b/isomorphic-fetch/isomorphic-fetch-tests.ts
@@ -0,0 +1,53 @@
+/// <reference path="isomorphic-fetch.d.ts"/>
+
+function test_isomorphicFetchTestCases() {
+    expectSuccess(fetch('http://localhost:3000/good'), 'Good response');
+    
+    fetch('http://localhost:3000/bad')
+        .then((response: IResponse) => {
+            return response.text();
+        })
+        .catch((err) => {
+        });
+}
+
+function test_whatwgTestCases() {
+    var headers = new Headers();
+    headers.append("Content-Type", "application/json");
+    var requestOptions: RequestInit = {
+        method: "POST",
+        headers: headers,
+        mode: 'same-origin',
+        credentials: 'omit',
+        cache: 'default'
+    };
+
+    expectSuccess(fetch('http://localhost:3000/poster', requestOptions), 'Post response:');
+    
+    var requestOptions: RequestInit = {
+        method: "POST",
+        headers: {
+            'Content-Type': 'application/json'
+        }
+    };
+    
+    expectSuccess(fetch('http://localhost:3000/poster', requestOptions), 'Post response:');
+    
+    var requestOptions: RequestInit = {
+        method: "POST",
+        headers: {
+            'Content-Type': 'application/json'
+        }
+    };
+    var request: Request = new Request('http://localhost:3000/poster', requestOptions);
+
+    expectSuccess(fetch(request), 'Post response:');
+}
+    
+function expectSuccess(promise: Promise<IResponse>, responseText: string) {
+    promise.then((response: IResponse) => {
+        return response.text();
+    })
+    .then((text: string) => {
+    });
+}
diff --git a/isomorphic-fetch/isomorphic-fetch-tests.ts.tscparams b/isomorphic-fetch/isomorphic-fetch-tests.ts.tscparams
new file mode 100644
index 000000000..f5c1d1215
--- /dev/null
+++ b/isomorphic-fetch/isomorphic-fetch-tests.ts.tscparams
@@ -0,0 +1 @@
+--target es6 --noImplicitAny
\ No newline at end of file
diff --git a/isomorphic-fetch/isomorphic-fetch.d.ts b/isomorphic-fetch/isomorphic-fetch.d.ts
new file mode 100644
index 000000000..84e4c4b01
--- /dev/null
+++ b/isomorphic-fetch/isomorphic-fetch.d.ts
@@ -0,0 +1,119 @@
+// Type definitions for isomorphic-fetch
+// Project: https://github.com/matthew-andrews/isomorphic-fetch
+// Definitions by: Todd Lucas <https://github.com/toddlucas>
+// Definitions: https://github.com/borisyankov/DefinitelyTyped
+
+declare enum RequestContext {
+    "audio", "beacon", "cspreport", "download", "embed", "eventsource", 
+    "favicon", "fetch", "font", "form", "frame", "hyperlink", "iframe", 
+    "image", "imageset", "import", "internal", "location", "manifest", 
+    "object", "ping", "plugin", "prefetch", "script", "serviceworker", 
+    "sharedworker", "subresource", "style", "track", "video", "worker",
+    "xmlhttprequest", "xslt"
+}
+declare enum RequestMode { "same-origin", "no-cors", "cors" }
+declare enum RequestCredentials { "omit", "same-origin", "include" }
+declare enum RequestCache { 
+    "default", "no-store", "reload", "no-cache", "force-cache", 
+    "only-if-cached"
+}
+declare enum ResponseType { "basic", "cors", "default", "error", "opaque" }
+
+declare type HeaderInit = Headers | Array<string>;
+declare type BodyInit = Blob | FormData | string;
+declare type RequestInfo = Request | string;
+
+interface RequestInit {
+    method?: string;
+    headers?: HeaderInit | { [index: string]: string };
+    body?: BodyInit;
+    mode?: string | RequestMode;
+    credentials?: string | RequestCredentials;
+    cache?: string | RequestCache;
+}
+
+interface IHeaders {
+    get(name: string): string;
+    getAll(name: string): Array<string>;
+    has(name: string): boolean;
+}
+
+declare class Headers implements IHeaders {
+    append(name: string, value: string): void;
+    delete(name: string):void;
+    get(name: string): string;
+    getAll(name: string): Array<string>;
+    has(name: string): boolean;
+    set(name: string, value: string): void;
+}
+
+interface IBody {
+    bodyUsed: boolean;
+    arrayBuffer(): Promise<ArrayBuffer>;
+    blob(): Promise<Blob>;
+    formData(): Promise<FormData>;
+    json(): Promise<any>;
+    json<T>(): Promise<T>;
+    text(): Promise<string>;
+}
+
+declare class Body implements IBody {
+    bodyUsed: boolean;
+    arrayBuffer(): Promise<ArrayBuffer>;
+    blob(): Promise<Blob>;
+    formData(): Promise<FormData>;
+    json(): Promise<any>;
+    json<T>(): Promise<T>;
+    text(): Promise<string>;
+}
+
+interface IRequest extends IBody {
+    method: string;
+    url: string;
+    headers: Headers;
+    context: string | RequestContext;
+    referrer: string;
+    mode: string | RequestMode;
+    credentials: string | RequestCredentials;
+    cache: string | RequestCache;
+}
+
+declare class Request extends Body implements IRequest {
+    constructor(input: string | Request, init?: RequestInit);
+    method: string;
+    url: string;
+    headers: Headers;
+    context: string | RequestContext;
+    referrer: string;
+    mode: string | RequestMode;
+    credentials: string | RequestCredentials;
+    cache: string | RequestCache;
+}
+
+interface IResponse extends IBody {
+    url: string;
+    status: number;
+    statusText: string;
+    ok: boolean;
+    headers: IHeaders;
+    type: string | ResponseType;
+    size: number;
+    timeout: number;
+    redirect(url: string, status: number): IResponse;
+    error(): IResponse;
+    clone(): IResponse;
+}
+
+interface IFetchStatic {
+    Promise: any;
+    Headers: IHeaders
+    Request: IRequest;
+    Response: IResponse;
+    (url: string | IRequest, init?: RequestInit): Promise<IResponse>;
+}
+
+declare module "isomorphic-fetch" {
+    export default IFetchStatic;
+}
+
+declare var fetch: IFetchStatic;