fix(http): Update types for TypeScript nullability support

This reverts commit 268884296a.

packages/http/src/backends/browser_jsonp.ts

@@ -10,7 +10,7 @@ import {Injectable} from '@angular/core';
 
 let _nextRequestId = 0;
 export const JSONP_HOME = '__ng_jsonp__';
-let _jsonpConnections: {[key: string]: any} = null;
+let _jsonpConnections: {[key: string]: any}|null = null;
 
 function _getJsonpConnections(): {[key: string]: any} {
   const w: {[key: string]: any} = typeof window == 'object' ? window : {};

packages/http/src/backends/xhr_backend.ts

@@ -115,7 +115,7 @@ export class XHRConnection implements Connection {
       if (!req.headers.has('Accept')) {
         req.headers.append('Accept', 'application/json, text/plain, */*');
       }
-      req.headers.forEach((values, name) => _xhr.setRequestHeader(name, values.join(',')));
+      req.headers.forEach((values, name) => _xhr.setRequestHeader(name !, values.join(',')));
 
       // Select the correct buffer type to store the response
       if (req.responseType != null && _xhr.responseType != null) {

packages/http/src/base_request_options.ts

@@ -44,11 +44,11 @@ export class RequestOptions {
    * Http method with which to execute a {@link Request}.
    * Acceptable methods are defined in the {@link RequestMethod} enum.
    */
-  method: RequestMethod|string;
+  method: RequestMethod|string|null;
   /**
    * {@link Headers} to be attached to a {@link Request}.
    */
-  headers: Headers;
+  headers: Headers|null;
   /**
    * Body to be used when creating a {@link Request}.
    */
@@ -56,7 +56,7 @@ export class RequestOptions {
   /**
    * Url with which to perform a {@link Request}.
    */
-  url: string;
+  url: string|null;
   /**
    * Search parameters to be included in a {@link Request}.
    */
@@ -72,11 +72,11 @@ export class RequestOptions {
   /**
    * Enable use credentials for a {@link Request}.
    */
-  withCredentials: boolean;
+  withCredentials: boolean|null;
   /*
    * Select a buffer to store the response, such as ArrayBuffer, Blob, Json (or Document)
    */
-  responseType: ResponseContentType;
+  responseType: ResponseContentType|null;
 
   // TODO(Dzmitry): remove search when this.search is removed
   constructor(
@@ -128,8 +128,8 @@ export class RequestOptions {
     });
   }
 
-  private _mergeSearchParams(params: string|URLSearchParams|
+  private _mergeSearchParams(params?: string|URLSearchParams|{[key: string]: any | any[]}|
-                             {[key: string]: any | any[]}): URLSearchParams {
+                             null): URLSearchParams {
     if (!params) return this.params;
 
     if (params instanceof URLSearchParams) {

packages/http/src/base_response_options.ts

@@ -46,25 +46,25 @@ export class ResponseOptions {
   /**
    * String, Object, ArrayBuffer or Blob representing the body of the {@link Response}.
    */
-  body: string|Object|ArrayBuffer|Blob;
+  body: string|Object|ArrayBuffer|Blob|null;
   /**
    * Http {@link http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html status code}
    * associated with the response.
    */
-  status: number;
+  status: number|null;
   /**
    * Response {@link Headers headers}
    */
-  headers: Headers;
+  headers: Headers|null;
   /**
    * @internal
    */
-  statusText: string;
+  statusText: string|null;
   /**
    * @internal
    */
-  type: ResponseType;
+  type: ResponseType|null;
-  url: string;
+  url: string|null;
   constructor({body, status, headers, statusText, type, url}: ResponseOptionsArgs = {}) {
     this.body = body != null ? body : null;
     this.status = status != null ? status : null;

packages/http/src/headers.ts

@@ -41,7 +41,7 @@ export class Headers {
   _normalizedNames: Map<string, string> = new Map();
 
   // TODO(vicb): any -> string|string[]
-  constructor(headers?: Headers|{[name: string]: any}) {
+  constructor(headers?: Headers|{[name: string]: any}|null) {
     if (!headers) {
       return;
     }
@@ -100,7 +100,8 @@ export class Headers {
     this._headers.delete(lcName);
   }
 
-  forEach(fn: (values: string[], name: string, headers: Map<string, string[]>) => void): void {
+  forEach(fn: (values: string[], name: string|undefined, headers: Map<string, string[]>) => void):
+      void {
     this._headers.forEach(
         (values, lcName) => fn(values, this._normalizedNames.get(lcName), this._headers));
   }
@@ -108,7 +109,7 @@ export class Headers {
   /**
    * Returns first header that matches given name.
    */
-  get(name: string): string {
+  get(name: string): string|null {
     const values = this.getAll(name);
 
     if (values === null) {
@@ -157,7 +158,7 @@ export class Headers {
     this._headers.forEach((values: string[], name: string) => {
       const split: string[] = [];
       values.forEach(v => split.push(...v.split(',')));
-      serialized[this._normalizedNames.get(name)] = split;
+      serialized[this._normalizedNames.get(name) !] = split;
     });
 
     return serialized;
@@ -166,8 +167,8 @@ export class Headers {
   /**
    * Returns list of header values for a given name.
    */
-  getAll(name: string): string[] {
+  getAll(name: string): string[]|null {
-    return this.has(name) ? this._headers.get(name.toLowerCase()) : null;
+    return this.has(name) ? this._headers.get(name.toLowerCase()) || null : null;
   }
 
   /**

packages/http/src/http.ts

@@ -8,9 +8,10 @@
 
 import {Injectable} from '@angular/core';
 import {Observable} from 'rxjs/Observable';
+
 import {BaseRequestOptions, RequestOptions} from './base_request_options';
 import {RequestMethod} from './enums';
-import {ConnectionBackend, RequestOptionsArgs} from './interfaces';
+import {ConnectionBackend, RequestArgs, RequestOptionsArgs} from './interfaces';
 import {Request} from './static_request';
 import {Response} from './static_response';
 
@@ -19,8 +20,8 @@ function httpRequest(backend: ConnectionBackend, request: Request): Observable<R
 }
 
 function mergeOptions(
-    defaultOpts: BaseRequestOptions, providedOpts: RequestOptionsArgs, method: RequestMethod,
+    defaultOpts: BaseRequestOptions, providedOpts: RequestOptionsArgs | undefined,
-    url: string): RequestOptions {
+    method: RequestMethod, url: string): RequestArgs {
   const newOptions = defaultOpts;
   if (providedOpts) {
     // Hack so Dart can used named parameters
@@ -33,10 +34,10 @@ function mergeOptions(
       body: providedOpts.body,
       withCredentials: providedOpts.withCredentials,
       responseType: providedOpts.responseType
-    }));
+    })) as RequestArgs;
   }
 
-  return newOptions.merge(new RequestOptions({method, url}));
+  return newOptions.merge(new RequestOptions({method, url})) as RequestArgs;
 }
 
 /**

packages/http/src/http_utils.ts

@@ -32,14 +32,14 @@ export function normalizeMethodName(method: string | RequestMethod): RequestMeth
 
 export const isSuccess = (status: number): boolean => (status >= 200 && status < 300);
 
-export function getResponseURL(xhr: any): string {
+export function getResponseURL(xhr: any): string|null {
   if ('responseURL' in xhr) {
     return xhr.responseURL;
   }
   if (/^X-Request-URL:/m.test(xhr.getAllResponseHeaders())) {
     return xhr.getResponseHeader('X-Request-URL');
   }
-  return;
+  return null;
 }
 
 export function stringToArrayBuffer(input: String): ArrayBuffer {

packages/http/src/interfaces.ts

@@ -46,21 +46,21 @@ export abstract class XSRFStrategy { abstract configureRequest(req: Request): vo
  * @experimental
  */
 export interface RequestOptionsArgs {
-  url?: string;
+  url?: string|null;
-  method?: string|RequestMethod;
+  method?: string|RequestMethod|null;
   /** @deprecated from 4.0.0. Use params instead. */
-  search?: string|URLSearchParams|{[key: string]: any | any[]};
+  search?: string|URLSearchParams|{[key: string]: any | any[]}|null;
-  params?: string|URLSearchParams|{[key: string]: any | any[]};
+  params?: string|URLSearchParams|{[key: string]: any | any[]}|null;
-  headers?: Headers;
+  headers?: Headers|null;
   body?: any;
-  withCredentials?: boolean;
+  withCredentials?: boolean|null;
-  responseType?: ResponseContentType;
+  responseType?: ResponseContentType|null;
 }
 
 /**
  * Required structure when constructing new Request();
  */
-export interface RequestArgs extends RequestOptionsArgs { url: string; }
+export interface RequestArgs extends RequestOptionsArgs { url: string|null; }
 
 /**
  * Interface for options to construct a Response, based on
@@ -69,10 +69,10 @@ export interface RequestArgs extends RequestOptionsArgs { url: string; }
  * @experimental
  */
 export interface ResponseOptionsArgs {
-  body?: string|Object|FormData|ArrayBuffer|Blob;
+  body?: string|Object|FormData|ArrayBuffer|Blob|null;
-  status?: number;
+  status?: number|null;
-  statusText?: string;
+  statusText?: string|null;
-  headers?: Headers;
+  headers?: Headers|null;
-  type?: ResponseType;
+  type?: ResponseType|null;
-  url?: string;
+  url?: string|null;
 }

packages/http/src/static_request.ts

@@ -75,7 +75,7 @@ export class Request extends Body {
     super();
     // TODO: assert that url is present
     const url = requestOptions.url;
-    this.url = requestOptions.url;
+    this.url = requestOptions.url !;
     if (requestOptions.params) {
       const params = requestOptions.params.toString();
       if (params.length > 0) {
@@ -88,13 +88,13 @@ export class Request extends Body {
       }
     }
     this._body = requestOptions.body;
-    this.method = normalizeMethodName(requestOptions.method);
+    this.method = normalizeMethodName(requestOptions.method !);
     // TODO(jeffbcross): implement behavior
     // Defaults to 'omit', consistent with browser
     this.headers = new Headers(requestOptions.headers);
     this.contentType = this.detectContentType();
-    this.withCredentials = requestOptions.withCredentials;
+    this.withCredentials = requestOptions.withCredentials !;
-    this.responseType = requestOptions.responseType;
+    this.responseType = requestOptions.responseType !;
   }
 
   /**

packages/http/src/static_response.ts

@@ -63,7 +63,7 @@ export class Response extends Body {
    *
    * Defaults to "OK"
    */
-  statusText: string;
+  statusText: string|null;
   /**
    * Non-standard property
    *
@@ -81,17 +81,17 @@ export class Response extends Body {
    * Headers object based on the `Headers` class in the [Fetch
    * Spec](https://fetch.spec.whatwg.org/#headers-class).
    */
-  headers: Headers;
+  headers: Headers|null;
 
   constructor(responseOptions: ResponseOptions) {
     super();
     this._body = responseOptions.body;
-    this.status = responseOptions.status;
+    this.status = responseOptions.status !;
     this.ok = (this.status >= 200 && this.status <= 299);
     this.statusText = responseOptions.statusText;
     this.headers = responseOptions.headers;
-    this.type = responseOptions.type;
+    this.type = responseOptions.type !;
-    this.url = responseOptions.url;
+    this.url = responseOptions.url !;
   }
 
   toString(): string {

packages/http/src/url_search_params.ts

@@ -93,7 +93,7 @@ export class URLSearchParams {
 
   has(param: string): boolean { return this.paramsMap.has(param); }
 
-  get(param: string): string {
+  get(param: string): string|null {
     const storedParam = this.paramsMap.get(param);
 
     return Array.isArray(storedParam) ? storedParam[0] : null;

packages/http/test/backends/jsonp_backend_spec.ts

@@ -59,13 +59,14 @@ export function main() {
       ]);
       backend = injector.get(JSONPBackend);
       const base = new BaseRequestOptions();
-      sampleRequest = new Request(base.merge(new RequestOptions({url: 'https://google.com'})));
+      sampleRequest =
+          new Request(base.merge(new RequestOptions({url: 'https://google.com'})) as any);
     });
 
     afterEach(() => { existingScripts = []; });
 
     it('should create a connection', () => {
-      let instance: JSONPConnection;
+      let instance: JSONPConnection = undefined !;
       expect(() => instance = backend.createConnection(sampleRequest)).not.toThrow();
       expect(instance).toBeAnInstanceOf(JSONPConnection);
     });
@@ -146,8 +147,8 @@ export function main() {
          RequestMethod.Head, RequestMethod.Patch]
             .forEach(method => {
               const base = new BaseRequestOptions();
-              const req = new Request(
+              const req = new Request(base.merge(
-                  base.merge(new RequestOptions({url: 'https://google.com', method: method})));
+                  new RequestOptions({url: 'https://google.com', method: method})) as any);
               expect(() => new JSONPConnection_(req, new MockBrowserJsonp()).response.subscribe())
                   .toThrowError();
             });

packages/http/test/backends/mock_backend_spec.ts

@@ -31,9 +31,11 @@ export function main() {
           [{provide: ResponseOptions, useClass: BaseResponseOptions}, MockBackend]);
       backend = injector.get(MockBackend);
       const base = new BaseRequestOptions();
-      sampleRequest1 = new Request(base.merge(new RequestOptions({url: 'https://google.com'})));
+      sampleRequest1 =
+          new Request(base.merge(new RequestOptions({url: 'https://google.com'})) as any);
       sampleResponse1 = new Response(new ResponseOptions({body: 'response1'}));
-      sampleRequest2 = new Request(base.merge(new RequestOptions({url: 'https://google.com'})));
+      sampleRequest2 =
+          new Request(base.merge(new RequestOptions({url: 'https://google.com'})) as any);
       sampleResponse2 = new Response(new ResponseOptions({body: 'response2'}));
     });
 
@@ -65,7 +67,7 @@ export function main() {
     it('should allow responding after subscription with an error',
        inject([AsyncTestCompleter], (async: AsyncTestCompleter) => {
          const connection: MockConnection = backend.createConnection(sampleRequest1);
-         connection.response.subscribe(null, () => { async.done(); });
+         connection.response.subscribe(null !, () => { async.done(); });
          connection.mockError(new Error('nope'));
        }));
 
@@ -98,12 +100,12 @@ export function main() {
     xit('should allow double subscribing',
         inject([AsyncTestCompleter], (async: AsyncTestCompleter) => {
           const responses: Response[] = [sampleResponse1, sampleResponse2];
-          backend.connections.subscribe((c: MockConnection) => c.mockRespond(responses.shift()));
+          backend.connections.subscribe((c: MockConnection) => c.mockRespond(responses.shift() !));
           const responseObservable: ReplaySubject<Response> =
               backend.createConnection(sampleRequest1).response;
           responseObservable.subscribe(res => expect(res.text()).toBe('response1'));
           responseObservable.subscribe(
-              res => expect(res.text()).toBe('response2'), null, async.done);
+              res => expect(res.text()).toBe('response2'), null !, async.done);
         }));
 
     // TODO(robwormald): readyStates are leaving?

packages/http/test/backends/xhr_backend_spec.ts

@@ -75,7 +75,7 @@ class MockBrowserXHR extends BrowserXhr {
 
   removeEventListener(type: string, cb: Function) { this.callbacks.delete(type); }
 
-  dispatchEvent(type: string) { this.callbacks.get(type)({}); }
+  dispatchEvent(type: string) { this.callbacks.get(type) !({}); }
 
   build() {
     const xhr = new MockBrowserXHR();
@@ -99,7 +99,8 @@ export function main() {
     beforeEach(inject([XHRBackend], (be: XHRBackend) => {
       backend = be;
       const base = new BaseRequestOptions();
-      sampleRequest = new Request(base.merge(new RequestOptions({url: 'https://google.com'})));
+      sampleRequest =
+          new Request(base.merge(new RequestOptions({url: 'https://google.com'})) as any);
     }));
 
     afterEach(() => { existingXHRs = []; });
@@ -163,7 +164,7 @@ export function main() {
                sampleRequest, new MockBrowserXHR(),
                new ResponseOptions({type: ResponseType.Error}));
            connection.response.subscribe(
-               (res: Response) => { expect(res.type).toBe(ResponseType.Error); }, null,
+               (res: Response) => { expect(res.type).toBe(ResponseType.Error); }, null !,
                () => { async.done(); });
            existingXHRs[0].setStatusCode(200);
            existingXHRs[0].dispatchEvent('load');
@@ -181,7 +182,7 @@ export function main() {
            const connection = new XHRConnection(
                sampleRequest, new MockBrowserXHR(),
                new ResponseOptions({type: ResponseType.Error}));
-           connection.response.subscribe(null, (res: Response) => {
+           connection.response.subscribe(null !, (res: Response) => {
              expect(res.type).toBe(ResponseType.Error);
              async.done();
            });
@@ -193,7 +194,7 @@ export function main() {
            const connection = new XHRConnection(
                sampleRequest, new MockBrowserXHR(),
                new ResponseOptions({type: ResponseType.Error}));
-           connection.response.subscribe(null, (res: Response) => {
+           connection.response.subscribe(null !, (res: Response) => {
              expect(res.type).toBe(ResponseType.Error);
              expect(res.status).toEqual(0);
              expect(res.statusText).toEqual('');
@@ -217,7 +218,7 @@ export function main() {
         const body = 'Some body to love';
         const base = new BaseRequestOptions();
         const connection = new XHRConnection(
-            new Request(base.merge(new RequestOptions({body: body}))), new MockBrowserXHR());
+            new Request(base.merge(new RequestOptions({body: body})) as any), new MockBrowserXHR());
         expect(sendSpy).not.toHaveBeenCalled();
         connection.response.subscribe();
         expect(sendSpy).toHaveBeenCalledWith(body);
@@ -229,7 +230,8 @@ export function main() {
 
         const base = new BaseRequestOptions();
         const connection = new XHRConnection(
-            new Request(base.merge(new RequestOptions({headers: headers}))), new MockBrowserXHR());
+            new Request(base.merge(new RequestOptions({headers: headers})) as any),
+            new MockBrowserXHR());
         connection.response.subscribe();
         expect(setRequestHeaderSpy).toHaveBeenCalledWith('Content-Type', 'text/xml');
         expect(setRequestHeaderSpy).toHaveBeenCalledWith('Breaking-Bad', '<3');
@@ -240,7 +242,7 @@ export function main() {
         const headers = new Headers();
         const base = new BaseRequestOptions();
         const connection = new XHRConnection(
-            new Request(base.merge(new RequestOptions({headers}))), new MockBrowserXHR());
+            new Request(base.merge(new RequestOptions({headers})) as any), new MockBrowserXHR());
         connection.response.subscribe();
         expect(setRequestHeaderSpy)
             .toHaveBeenCalledWith('Accept', 'application/json, text/plain, */*');
@@ -250,7 +252,7 @@ export function main() {
         const headers = new Headers({'Accept': 'text/xml'});
         const base = new BaseRequestOptions();
         const connection = new XHRConnection(
-            new Request(base.merge(new RequestOptions({headers}))), new MockBrowserXHR());
+            new Request(base.merge(new RequestOptions({headers})) as any), new MockBrowserXHR());
         connection.response.subscribe();
         expect(setRequestHeaderSpy).toHaveBeenCalledWith('Accept', 'text/xml');
       });
@@ -260,7 +262,7 @@ export function main() {
         const body = {test: 'val'};
         const base = new BaseRequestOptions();
         const connection = new XHRConnection(
-            new Request(base.merge(new RequestOptions({body: body, headers: headers}))),
+            new Request(base.merge(new RequestOptions({body: body, headers: headers})) as any),
             new MockBrowserXHR());
         connection.response.subscribe();
         expect(setRequestHeaderSpy).toHaveBeenCalledWith('Content-Type', 'text/plain');
@@ -272,7 +274,7 @@ export function main() {
         const body = {test: 'val'};
         const base = new BaseRequestOptions();
         const connection = new XHRConnection(
-            new Request(base.merge(new RequestOptions({body: body}))), new MockBrowserXHR());
+            new Request(base.merge(new RequestOptions({body: body})) as any), new MockBrowserXHR());
         connection.response.subscribe();
         expect(sendSpy).toHaveBeenCalledWith(JSON.stringify(body, null, 2));
         expect(setRequestHeaderSpy).toHaveBeenCalledWith('content-type', 'application/json');
@@ -282,7 +284,7 @@ export function main() {
         const body = 23;
         const base = new BaseRequestOptions();
         const connection = new XHRConnection(
-            new Request(base.merge(new RequestOptions({body: body}))), new MockBrowserXHR());
+            new Request(base.merge(new RequestOptions({body: body})) as any), new MockBrowserXHR());
         connection.response.subscribe();
         expect(sendSpy).toHaveBeenCalledWith('23');
         expect(setRequestHeaderSpy).toHaveBeenCalledWith('content-type', 'text/plain');
@@ -292,7 +294,7 @@ export function main() {
         const body = 'some string';
         const base = new BaseRequestOptions();
         const connection = new XHRConnection(
-            new Request(base.merge(new RequestOptions({body: body}))), new MockBrowserXHR());
+            new Request(base.merge(new RequestOptions({body: body})) as any), new MockBrowserXHR());
         connection.response.subscribe();
         expect(sendSpy).toHaveBeenCalledWith(body);
         expect(setRequestHeaderSpy).toHaveBeenCalledWith('content-type', 'text/plain');
@@ -304,7 +306,7 @@ export function main() {
         body.set('test2', 'val2');
         const base = new BaseRequestOptions();
         const connection = new XHRConnection(
-            new Request(base.merge(new RequestOptions({body: body}))), new MockBrowserXHR());
+            new Request(base.merge(new RequestOptions({body: body})) as any), new MockBrowserXHR());
         connection.response.subscribe();
         expect(sendSpy).toHaveBeenCalledWith('test1=val1&test2=val2');
         expect(setRequestHeaderSpy)
@@ -337,7 +339,8 @@ export function main() {
           body.append('userfile', blob);
           const base = new BaseRequestOptions();
           const connection = new XHRConnection(
-              new Request(base.merge(new RequestOptions({body: body}))), new MockBrowserXHR());
+              new Request(base.merge(new RequestOptions({body: body})) as any),
+              new MockBrowserXHR());
           connection.response.subscribe();
           expect(sendSpy).toHaveBeenCalledWith(body);
           expect(setRequestHeaderSpy).not.toHaveBeenCalledWith();
@@ -347,14 +350,15 @@ export function main() {
           const body = createBlob(['body { color: red; }'], 'text/css');
           const base = new BaseRequestOptions();
           const connection = new XHRConnection(
-              new Request(base.merge(new RequestOptions({body: body}))), new MockBrowserXHR());
+              new Request(base.merge(new RequestOptions({body: body})) as any),
+              new MockBrowserXHR());
           connection.response.subscribe();
           expect(sendSpy).toHaveBeenCalledWith(body);
           expect(setRequestHeaderSpy).toHaveBeenCalledWith('content-type', 'text/css');
         });
 
         it('should use blob body without type to the request', () => {
-          const body = createBlob(['body { color: red; }'], null);
+          const body = createBlob(['body { color: red; }'], null !);
           const base = new BaseRequestOptions();
           const connection = new XHRConnection(
               new Request(base.merge(new RequestOptions({body: body}))), new MockBrowserXHR());
@@ -366,7 +370,7 @@ export function main() {
         it('should use blob body without type with custom content type header to the request',
            () => {
              const headers = new Headers({'Content-Type': 'text/css'});
-             const body = createBlob(['body { color: red; }'], null);
+             const body = createBlob(['body { color: red; }'], null !);
              const base = new BaseRequestOptions();
              const connection = new XHRConnection(
                  new Request(base.merge(new RequestOptions({body: body, headers: headers}))),
@@ -590,7 +594,7 @@ export function main() {
          inject([AsyncTestCompleter], (async: AsyncTestCompleter) => {
            const conn =
                new XHRConnection(sampleRequest, new MockBrowserXHR(), new ResponseOptions());
-           conn.response.subscribe(null, (res: Response) => {
+           conn.response.subscribe(null !, (res: Response) => {
              expect(res.text()).toBe('{json: "object"}');
              async.done();
            });
@@ -611,10 +615,10 @@ Transfer-Encoding: chunked
 Connection: keep-alive`;
 
            connection.response.subscribe((res: Response) => {
-             expect(res.headers.get('Date')).toEqual('Fri, 20 Nov 2015 01:45:26 GMT');
+             expect(res.headers !.get('Date')).toEqual('Fri, 20 Nov 2015 01:45:26 GMT');
-             expect(res.headers.get('Content-Type')).toEqual('application/json; charset=utf-8');
+             expect(res.headers !.get('Content-Type')).toEqual('application/json; charset=utf-8');
-             expect(res.headers.get('Transfer-Encoding')).toEqual('chunked');
+             expect(res.headers !.get('Transfer-Encoding')).toEqual('chunked');
-             expect(res.headers.get('Connection')).toEqual('keep-alive');
+             expect(res.headers !.get('Connection')).toEqual('keep-alive');
              async.done();
            });
 

packages/http/test/http_spec.ts

@@ -175,7 +175,7 @@ export function main() {
              backend.connections.subscribe((c: MockConnection) => c.mockRespond(baseResponse));
              http.request('http://basic.connection')
                  .subscribe(
-                     (res: Response) => { expect(res.text()).toBe('base response'); }, null,
+                     (res: Response) => { expect(res.text()).toBe('base response'); }, null !,
                      () => { async.done(); });
            }));
 
@@ -188,7 +188,7 @@ export function main() {
              });
              http.request('http://basic.connection')
                  .subscribe(
-                     (res: Response) => { expect(res.text()).toBe('base response'); }, null,
+                     (res: Response) => { expect(res.text()).toBe('base response'); }, null !,
                      () => { async.done(); });
            }));
 

packages/http/test/static_request_spec.ts

@@ -17,7 +17,8 @@ export function main() {
   describe('Request', () => {
     describe('detectContentType', () => {
       it('should return ContentType.NONE', () => {
-        const req = new Request(new RequestOptions({url: 'test', method: 'GET', body: null}));
+        const req =
+            new Request(new RequestOptions({url: 'test', method: 'GET', body: null}) as any);
 
         expect(req.detectContentType()).toEqual(ContentType.NONE);
       });
@@ -28,7 +29,7 @@ export function main() {
           method: 'GET',
           body: null,
           headers: new Headers({'content-type': 'application/json'})
-        }));
+        }) as any);
 
         expect(req.detectContentType()).toEqual(ContentType.JSON);
       });
@@ -39,7 +40,7 @@ export function main() {
           method: 'GET',
           body: null,
           headers: new Headers({'content-type': 'application/x-www-form-urlencoded'})
-        }));
+        }) as any);
 
         expect(req.detectContentType()).toEqual(ContentType.FORM);
       });
@@ -50,7 +51,7 @@ export function main() {
           method: 'GET',
           body: null,
           headers: new Headers({'content-type': 'multipart/form-data'})
-        }));
+        }) as any);
 
         expect(req.detectContentType()).toEqual(ContentType.FORM_DATA);
       });
@@ -61,7 +62,7 @@ export function main() {
           method: 'GET',
           body: null,
           headers: new Headers({'content-type': 'text/plain'})
-        }));
+        }) as any);
 
         expect(req.detectContentType()).toEqual(ContentType.TEXT);
       });
@@ -72,7 +73,7 @@ export function main() {
           method: 'GET',
           body: null,
           headers: new Headers({'content-type': 'application/octet-stream'})
-        }));
+        }) as any);
 
         expect(req.detectContentType()).toEqual(ContentType.BLOB);
       });
@@ -83,7 +84,7 @@ export function main() {
           method: 'GET',
           body: new ArrayBuffer(1),
           headers: new Headers({'content-type': 'application/octet-stream'})
-        }));
+        }) as any);
 
         expect(req.detectContentType()).toEqual(ContentType.ARRAY_BUFFER);
       });
@@ -95,7 +96,7 @@ export function main() {
         method: 'GET',
         body: null,
         headers: new Headers({'content-type': 'application/json'})
-      }));
+      }) as any);
 
       expect(req.text()).toEqual('');
     });
@@ -104,7 +105,7 @@ export function main() {
       const reqOptions = new RequestOptions(
           {url: 'test', method: 'GET', headers: new Headers({'content-type': 'application/json'})});
       delete reqOptions.body;
-      const req = new Request(reqOptions);
+      const req = new Request(reqOptions as any);
 
       expect(req.text()).toEqual('');
     });

packages/http/test/url_search_params_spec.ts

@@ -151,19 +151,19 @@ export function main() {
 
     it('should remove the parameter when set to undefined or null', () => {
       const params = new URLSearchParams('q=Q');
-      params.set('q', undefined);
+      params.set('q', undefined !);
       expect(params.has('q')).toBe(false);
       expect(params.toString()).toEqual('');
-      params.set('q', null);
+      params.set('q', null !);
       expect(params.has('q')).toBe(false);
       expect(params.toString()).toEqual('');
     });
 
     it('should ignore the value when append undefined or null', () => {
       const params = new URLSearchParams('q=Q');
-      params.append('q', undefined);
+      params.append('q', undefined !);
       expect(params.toString()).toEqual('q=Q');
-      params.append('q', null);
+      params.append('q', null !);
       expect(params.toString()).toEqual('q=Q');
     });
 

tools/public_api_guard/http/http.d.ts

@@ -36,13 +36,13 @@ export declare class CookieXSRFStrategy implements XSRFStrategy {
 export declare class Headers {
     constructor(headers?: Headers | {
         [name: string]: any;
-    });
+    } | null);
     append(name: string, value: string): void;
     delete(name: string): void;
     entries(): void;
-    forEach(fn: (values: string[], name: string, headers: Map<string, string[]>) => void): void;
+    forEach(fn: (values: string[], name: string | undefined, headers: Map<string, string[]>) => void): void;
-    get(name: string): string;
+    get(name: string): string | null;
-    getAll(name: string): string[];
+    getAll(name: string): string[] | null;
     has(name: string): boolean;
     keys(): string[];
     set(name: string, value: string | string[]): void;
@@ -137,13 +137,13 @@ export declare enum RequestMethod {
 /** @experimental */
 export declare class RequestOptions {
     body: any;
-    headers: Headers;
+    headers: Headers | null;
-    method: RequestMethod | string;
+    method: RequestMethod | string | null;
     params: URLSearchParams;
-    responseType: ResponseContentType;
+    responseType: ResponseContentType | null;
     /** @deprecated */ search: URLSearchParams;
-    url: string;
+    url: string | null;
-    withCredentials: boolean;
+    withCredentials: boolean | null;
     constructor({method, headers, body, url, search, params, withCredentials, responseType}?: RequestOptionsArgs);
     merge(options?: RequestOptionsArgs): RequestOptions;
 }
@@ -151,26 +151,26 @@ export declare class RequestOptions {
 /** @experimental */
 export interface RequestOptionsArgs {
     body?: any;
-    headers?: Headers;
+    headers?: Headers | null;
-    method?: string | RequestMethod;
+    method?: string | RequestMethod | null;
     params?: string | URLSearchParams | {
         [key: string]: any | any[];
-    };
+    } | null;
-    responseType?: ResponseContentType;
+    responseType?: ResponseContentType | null;
     /** @deprecated */ search?: string | URLSearchParams | {
         [key: string]: any | any[];
-    };
+    } | null;
-    url?: string;
+    url?: string | null;
-    withCredentials?: boolean;
+    withCredentials?: boolean | null;
 }
 
 /** @experimental */
 export declare class Response extends Body {
     bytesLoaded: number;
-    headers: Headers;
+    headers: Headers | null;
     ok: boolean;
     status: number;
-    statusText: string;
+    statusText: string | null;
     totalBytes: number;
     type: ResponseType;
     url: string;
@@ -188,22 +188,22 @@ export declare enum ResponseContentType {
 
 /** @experimental */
 export declare class ResponseOptions {
-    body: string | Object | ArrayBuffer | Blob;
+    body: string | Object | ArrayBuffer | Blob | null;
-    headers: Headers;
+    headers: Headers | null;
-    status: number;
+    status: number | null;
-    url: string;
+    url: string | null;
     constructor({body, status, headers, statusText, type, url}?: ResponseOptionsArgs);
     merge(options?: ResponseOptionsArgs): ResponseOptions;
 }
 
 /** @experimental */
 export interface ResponseOptionsArgs {
-    body?: string | Object | FormData | ArrayBuffer | Blob;
+    body?: string | Object | FormData | ArrayBuffer | Blob | null;
-    headers?: Headers;
+    headers?: Headers | null;
-    status?: number;
+    status?: number | null;
-    statusText?: string;
+    statusText?: string | null;
-    type?: ResponseType;
+    type?: ResponseType | null;
-    url?: string;
+    url?: string | null;
 }
 
 /** @experimental */
@@ -224,7 +224,7 @@ export declare class URLSearchParams {
     appendAll(searchParams: URLSearchParams): void;
     clone(): URLSearchParams;
     delete(param: string): void;
-    get(param: string): string;
+    get(param: string): string | null;
     getAll(param: string): string[];
     has(param: string): boolean;
     replaceAll(searchParams: URLSearchParams): void;