From c9a536f1b5d48ee37d19740290d7df0db939c1af Mon Sep 17 00:00:00 2001
From: Dani Palou <dani@moodle.com>
Date: Fri, 8 Feb 2019 15:08:47 +0100
Subject: [PATCH] MOBILE-2861 core: Fix error when dismissing a loading modal
 twice

---
 src/providers/utils/dom.ts | 17 +++++++++++++++--
 1 file changed, 15 insertions(+), 2 deletions(-)

diff --git a/src/providers/utils/dom.ts b/src/providers/utils/dom.ts
index d026def15..bf303e859 100644
--- a/src/providers/utils/dom.ts
+++ b/src/providers/utils/dom.ts
@@ -1160,8 +1160,21 @@ export class CoreDomUtilsProvider {
         }
 
         const loader = this.loadingCtrl.create({
-            content: text
-        });
+                content: text
+            }),
+            dismiss = loader.dismiss.bind(loader);
+        let isDismissed = false;
+
+        // Override dismiss to prevent dismissing a modal twice (it can throw an error and cause problems).
+        loader.dismiss = (data, role, navOptions): Promise<any> => {
+            if (isDismissed) {
+                return Promise.resolve();
+            }
+
+            isDismissed = true;
+
+            return dismiss(data, role, navOptions);
+        };
 
         loader.present();