CloseScrollStrategy on MatAutocomplete

app.ts

import { NgModule } from '@angular/core';

import { MAT_AUTOCOMPLETE_SCROLL_STRATEGY } from '@angular/material';
import { Overlay, ScrollStrategy } from '@angular/cdk/overlay';


@NgModule({
  declarations: [
    [..]
  ],
  providers: [{ provide: MAT_AUTOCOMPLETE_SCROLL_STRATEGY, useFactory: function (overlay: Overlay): () => ScrollStrategy {
    return () => overlay.scrollStrategies.close();
  }, deps: [Overlay]}]
})
export class AppModule {}