fix(proxy): add a cookieRewrite option which is passed to proxy-middleware. (#1226)

This allows cookies to be forwarded correctly when using a proxy
to an HTTPS URL.

Related:
* #454
* ionic-team/ionic-cli#415

Author: Airblader

src/dev-server/http-server.ts

@@ -63,6 +63,7 @@ function setupProxies(app: express.Application) {
         }
 
         opts.rejectUnauthorized = !(proxy.rejectUnauthorized === false);
+        opts.cookieRewrite = proxy.cookieRewrite;
 
         app.use(proxy.path, proxyMiddleware(opts));
         Logger.info('Proxy added:' + proxy.path + ' => ' + url.format(opts));

src/util/ionic-project.ts

@@ -10,7 +10,8 @@ export interface IonicProject {
     path: string,
     proxyUrl: string,
     proxyNoAgent: boolean,
-    rejectUnauthorized: boolean
+    rejectUnauthorized: boolean,
+    cookieRewrite: string | boolean,
   }[];
 }