While the app works perfectly in the DEBUG mode, most of the time, it hangs or shows Unresponsive Page error in chrome.
I haven't test it in other browsers because what I've written won't work in other browsers at all.
Unfortunately have no idea how I can monitor requests in IIS.
I should say that both Server App and Angular 4 App are hosted on the local IIS v10 with individual application pools.
I already used --enable-logging --v=1 --vmodule=metrics=2 command when starting google-chrome, but I guess nothing important are being saved in chrome_debug.log file or at least I can't read it.