universal-starter | Angular 9 Universal repo with many features | Server Side Rendering library

In Angular 7 Universal, I was able to add 3rd party scripts using postscribe (without any special settings).

Now I am trying to use postscribe in Angular 9 Universal project like

Hey I have App based on this starter kit

I deploy my app with the SSR feature from server.ts.

and the app is being served "dynamically" with Apache reverse proxy to localhost:4002 for multiple domains.

I.e domainA.com and domainB.com point to the same localhost:4002 with rev proxy. All the domains use the same App instance So far so good.

But now I've got a requirement for it to work under our partner reverse proxy which will look something like this partner.com/app/ will reverse proxy to partner.domainA.com

Which causes a lot of problems when loading the JS.

Currently the base-href is set to / which works on our sites great. but when a user goes to partner.com/app the browser tries to load all the JS assets from partner.com/*.js while the are only available on partner.com/app/*.js or partner.domainA.com/*.js.

My possible solution is to set APP_BASE_HERF from the server.ts when the request arrives.

But every thing I tried didn't seem to work.

I tried following this guide but it didn't seem to work and it was loading the url from the window object while I need to set it from the origin host which is available only from req.headers.host

in server.ts:

So, I've been trying for days to get a angular universal app running but I keep getting this issue when I try to run the server like

After upgrading to Angular 9, I'm getting error ReferenceError: window is not defined when running yarn serve:ssr.

In our Angular apps, we use trick with Domino to emulate window for SSR (as in https://github.com/Angular-RU/angular-universal-starter/blob/master/server.ts#L21 ).

So after ng update I have added these lines after imports in server.ts:

Please assist, I have created an angular 8 project then added @nestjs/ng-universal to add nestjs as my server side, everything was running smooth until i added @ain/bootstrap our own custom ui boostrap components then received the following error ReferenceError - KeyboardEvent is not defined, after searched and came across Angular Universal ReferenceError - KeyboardEvent is not defined and https://github.com/Angular-RU/angular-universal-starter/blob/master/server.ts#L11. tried to implement domino to main.server.ts since i don't have server.ts and add global.KeyboardEvent = null in main.server.ts But still getting