I found this post: https://github.com/angular/universal/issues/272 where user @gdi2290 explain how to add that functionalty

But I get error in my code:

/home/master/Documents/rs-dash/dist/server/server.bundle.js:317 throw new Error("Module build failed: Error: /home/master/Documents/rs-dash/src/app/app.node.module.ts (97,48): Property 'injector' does not exist on type 'ApplicationRef'.)\n/home/master/Documents/rs-dash/src/app/app.node.module.ts (97,61): Cannot find name 'YourServiceWithState'.)\n at _checkDiagnostics (/home/master/Documents/universal-cli/packages/@ngtools/webpack/src/loader.ts:115:15)\n at /home/master/Documents/universal-cli/packages/@ngtools/webpack/src/loader.ts:140:17"); ^

I added in node module:

constructor(public appRef: ApplicationRef) {

    }
    // lives in your node main module
    universalDoDehydrate(universalCache) {
        var yourServiceWithState = this.appRef.injector.get(YourServiceWithState)
        var key = 'yourServiceWithState._state'
        universalCache[key] = yourServiceWithState._state.justOneProp
    }

and in browser module:

constructor(public appRef: ApplicationRef) {
        // lives in your browser main module
        var key = 'yourServiceWithState._state'
        if (UNIVERSAL_CACHE[key]) {
            localStorage[key] = UNIVERSAL_CACHE[key]
        }
    }

Anyone know what is problem, I am using universal-cli?