fix: crash in deactivate page router outlet (#1590)

SvetoslavTsenov · manoldonev · commit f8c746858ead · 2018-11-06T13:45:19.000+02:00
diff --git a/nativescript-angular/router/page-router-outlet.ts b/nativescript-angular/router/page-router-outlet.ts
@@ -203,7 +203,7 @@ export class PageRouterOutlet implements OnDestroy { // tslint:disable-line:dire
     }
 
     deactivate(): void {
-        if (!this.outlet.isPageNavigationBack) {
+        if (!this.outlet || !this.outlet.isPageNavigationBack) {
             if (isLogEnabled()) {
                 log("Currently not in page back navigation - component should be detached instead of deactivated.");
             }

Original file line number	Diff line number	Diff line change
`@@ -203,7 +203,7 @@ export class PageRouterOutlet implements OnDestroy { // tslint:disable-line:dire`
`203`	`203`	`}`
`204`	`204`
`205`	`205`	`deactivate(): void {`
`206`		`- if (!this.outlet.isPageNavigationBack) {`
	`206`	`+ if (!this.outlet \|\| !this.outlet.isPageNavigationBack) {`
`207`	`207`	`if (isLogEnabled()) {`
`208`	`208`	`log("Currently not in page back navigation - component should be detached instead of deactivated.");`
`209`	`209`	`}`