diff --git a/modules/core/src/documentinterruptsource.ts b/modules/core/src/documentinterruptsource.ts
index 9b575d8..5244240 100644
--- a/modules/core/src/documentinterruptsource.ts
+++ b/modules/core/src/documentinterruptsource.ts
@@ -1,11 +1,13 @@
+import { Inject, PLATFORM_ID } from '@angular/core';
+import { isPlatformBrowser } from '@angular/common';
 import { EventTargetInterruptOptions, EventTargetInterruptSource } from './eventtargetinterruptsource';
 
 /*
  * An interrupt source that uses events on the document element (html tag).
  */
 export class DocumentInterruptSource extends EventTargetInterruptSource {
-  constructor(events: string, options?: number | EventTargetInterruptOptions) {
-    super(document.documentElement, events, options);
+  constructor(events: string, options?: number | EventTargetInterruptOptions, @Inject(PLATFORM_ID) private platformId?: any) {
+    super(isPlatformBrowser(platformId) ? document.documentElement : null, events, options);
   }
 
   /*
diff --git a/modules/core/src/eventtargetinterruptsource.ts b/modules/core/src/eventtargetinterruptsource.ts
index 072713a..2dbcd90 100644
--- a/modules/core/src/eventtargetinterruptsource.ts
+++ b/modules/core/src/eventtargetinterruptsource.ts
@@ -53,6 +53,9 @@ export class EventTargetInterruptSource extends InterruptSource {
     this.passive = !!options.passive;
 
     const opts = this.passive ? { passive: true } : null;
+    if(target == null) { 
+      return;
+    }
     const fromEvents = events.split(' ').map(eventName => Observable.fromEvent<any>(target, eventName, opts));
     this.eventSrc = Observable.merge(...fromEvents);
     this.eventSrc = this.eventSrc.filter(innerArgs => !this.filterEvent(innerArgs));
diff --git a/modules/core/src/windowinterruptsource.ts b/modules/core/src/windowinterruptsource.ts
index c82f808..f53eb1c 100644
--- a/modules/core/src/windowinterruptsource.ts
+++ b/modules/core/src/windowinterruptsource.ts
@@ -1,10 +1,12 @@
+import { Inject, PLATFORM_ID } from '@angular/core';
+import { isPlatformBrowser } from '@angular/common';
 import {EventTargetInterruptOptions, EventTargetInterruptSource} from './eventtargetinterruptsource';
 
 /*
  * An interrupt source on the Window object.
  */
 export class WindowInterruptSource extends EventTargetInterruptSource {
-  constructor(events: string, options?: number | EventTargetInterruptOptions) {
-    super(window, events, options);
+  constructor(events: string, options?: number | EventTargetInterruptOptions, @Inject(PLATFORM_ID) private platformId?: any) {
+    super(isPlatformBrowser(platformId) ? window : null, events, options);
   }
 }