Re: Problems with a basic filter

I've narrowed it down to here (see below)

for some reason the "targetWindow" value is not available

                    HttpPostMessage.prototype.send = function (request, targetWindow) {
                        if (targetWindow === void 0) { targetWindow = this.defaultTargetWindow; }
                        request.headers = this.assign({}, this.defaultHeaders, request.headers);
                        if (!targetWindow) {
                            throw new Error("target window is not provided.  You must either provide the target window explicitly as argument to request, or specify default target window when constructing instance of this class.");
                        }
                        return this.windowPostMessageProxy.postMessage(targetWindow, request);
                    };