fix(ts): Workaround for typescript issue

Author: prog110

src/interceptor-request-internal.ts

@@ -6,6 +6,14 @@ import { InterceptorUtils } from './interceptor-utils';
 
 export class InterceptorRequestInternal extends InterceptorRequest {
 
+  /**
+   * Hack
+   * TODO: Point to typescript bug
+   */
+  constructor() {
+    super(null);
+  }
+
   getShortCircuitAtCurrentStep(): boolean {
     return this._shortCircuitAtCurrentStep;
   }

src/interceptor-response-wrapper-builder-internal.ts

@@ -21,8 +21,9 @@ export class InterceptorResponseWrapperBuilderInternal extends InterceptorRespon
     } else if (from instanceof InterceptorResponseWrapper) {
       InterceptorUtils.assign(builder, <InterceptorResponseWrapper>from);
     } else {
-      const request: InterceptorRequestInternal = <InterceptorRequestInternal>from;
-      InterceptorUtils.assign(builder, request);
+      const request: InterceptorRequestInternal = new InterceptorRequestInternal();
+      InterceptorUtils.assign(request, from);
+      InterceptorUtils.assign(builder, from);
       if (request.getShortCircuitAtCurrentStep()) {
         builder.shortCircuitTriggeredBy(interceptorStep - 1)
           .forceRequestCompletion(request.getAlsoForceRequestCompletion());