diff --git a/ionic/components/action-sheet/action-sheet.ts b/ionic/components/action-sheet/action-sheet.ts
index 57f3bd9d6e..376b3925c8 100644
--- a/ionic/components/action-sheet/action-sheet.ts
+++ b/ionic/components/action-sheet/action-sheet.ts
@@ -4,6 +4,7 @@ import {NgFor, NgIf} from 'angular2/common';
 import {Animation} from '../../animations/animation';
 import {Config} from '../../config/config';
 import {Icon} from '../icon/icon';
+import {isDefined} from '../../util/util';
 import {NavParams} from '../nav/nav-params';
 import {ViewController} from '../nav/view-controller';
 
@@ -82,9 +83,11 @@ import {ViewController} from '../nav/view-controller';
      title?: string,
      subTitle?: string,
      cssClass?: string,
+     enableBackdropDismiss?: boolean,
      buttons?: Array<any>
    } = {}) {
      opts.buttons = opts.buttons || [];
+     opts.enableBackdropDismiss = isDefined(opts.enableBackdropDismiss) ? !!opts.enableBackdropDismiss : true;
 
      super(ActionSheetCmp, opts);
      this.viewType = 'action-sheet';
@@ -242,11 +245,13 @@ class ActionSheetCmp {
   }
 
   bdClick() {
-    if (this.d.cancelButton) {
-      this.click(this.d.cancelButton, 1);
+    if (this.d.enableBackdropDismiss) {
+      if (this.d.cancelButton) {
+        this.click(this.d.cancelButton, 1);
 
-    } else {
-      this.dismiss('backdrop');
+      } else {
+        this.dismiss('backdrop');
+      }
     }
   }
 
@@ -254,7 +259,11 @@ class ActionSheetCmp {
     return this._viewCtrl.dismiss(null, role);
   }
 
-  onPageDidLeave() {
+  onPageWillLeave() {
+    document.removeEventListener('keyup', this.keyUp);
+  }
+
+  ngOnDestroy() {
     document.removeEventListener('keyup', this.keyUp);
   }
 }
diff --git a/ionic/components/action-sheet/test/basic/index.ts b/ionic/components/action-sheet/test/basic/index.ts
index 10ac709180..0c86f08c4b 100644
--- a/ionic/components/action-sheet/test/basic/index.ts
+++ b/ionic/components/action-sheet/test/basic/index.ts
@@ -57,6 +57,7 @@ class E2EPage {
     this.result = '';
 
     let actionSheet = ActionSheet.create({
+      enableBackdropDismiss: false,
       buttons: [
         {
           text: 'Archive',
diff --git a/ionic/components/alert/alert.ts b/ionic/components/alert/alert.ts
index 4730c07462..0827ddbad8 100644
--- a/ionic/components/alert/alert.ts
+++ b/ionic/components/alert/alert.ts
@@ -137,7 +137,7 @@ export class Alert extends ViewController {
   } = {}) {
     opts.inputs = opts.inputs || [];
     opts.buttons = opts.buttons || [];
-    opts.enableBackdropDismiss = (opts.enableBackdropDismiss === false ? false : true);
+    opts.enableBackdropDismiss = isDefined(opts.enableBackdropDismiss) ? !!opts.enableBackdropDismiss : true;
 
     super(AlertCmp, opts);
     this.viewType = 'alert';