check for presence of cdr before doing a mark for check

Signed-off-by: bryanl <bryanliles@gmail.com>

web/src/app/modules/shared/pipes/relative/relative.pipe.ts

@@ -41,12 +41,16 @@ export class RelativePipe implements PipeTransform, OnDestroy {
 
     const then = now.getTime() / 1000 - ts;
 
-    const updateInterval = this.changeDetectionFrequency(then) * 1000;
+    const updateInterval = changeDetectionFrequency(then) * 1000;
 
     this.timer = this.ngZone.runOutsideAngular(() => {
       if (typeof window !== 'undefined') {
         return window.setTimeout(() => {
-          this.ngZone.run(() => this.changeDetectorRef.markForCheck());
+          this.ngZone.run(() => {
+            if (this.changeDetectorRef) {
+              this.changeDetectorRef.markForCheck();
+            }
+          });
         }, updateInterval);
       }
       return null;
@@ -73,17 +77,17 @@ export class RelativePipe implements PipeTransform, OnDestroy {
       this.timer = null;
     }
   }
+}
 
-  private changeDetectionFrequency(seconds: number) {
-    switch (true) {
-      case seconds < 60:
-        return 1;
-      case seconds < 3600:
-        return 60;
-      case seconds < 86400:
-        return 600;
-      default:
-        return 3600;
-    }
+const changeDetectionFrequency = (seconds: number) => {
+  switch (true) {
+    case seconds < 60:
+      return 1;
+    case seconds < 3600:
+      return 60;
+    case seconds < 86400:
+      return 600;
+    default:
+      return 3600;
   }
-}
+};