diff --git a/src/core/login/providers/helper.ts b/src/core/login/providers/helper.ts
index 838d217b7..8590c8d04 100644
--- a/src/core/login/providers/helper.ts
+++ b/src/core/login/providers/helper.ts
@@ -335,15 +335,15 @@ export class CoreLoginHelperProvider {
      */
     getSitePolicy(siteId?: string): Promise<string> {
         return this.sitesProvider.getSite(siteId).then((site) => {
-            // Check if it's stored in the site config.
-            const sitePolicy = site.getStoredConfig('sitepolicy');
-            if (typeof sitePolicy != 'undefined') {
+            // Try to get the latest config, maybe the site policy was just added or has changed.
+            return site.getConfig('sitepolicy', true).then((sitePolicy) => {
                 return sitePolicy ? sitePolicy : Promise.reject(null);
-            }
-
-            // Not in the config, try to get it using auth_email_get_signup_settings.
-            return this.wsProvider.callAjax('auth_email_get_signup_settings', {}, { siteUrl: site.getURL() }).then((settings) => {
-                return settings.sitepolicy ? settings.sitepolicy : Promise.reject(null);
+            }, () => {
+                // Cannot get config, try to get the site policy using auth_email_get_signup_settings.
+                return this.wsProvider.callAjax('auth_email_get_signup_settings', {}, { siteUrl: site.getURL() })
+                        .then((settings) => {
+                    return settings.sitepolicy ? settings.sitepolicy : Promise.reject(null);
+                });
             });
         });
     }
diff --git a/src/providers/utils/dom.ts b/src/providers/utils/dom.ts
index 320344365..faf948769 100644
--- a/src/providers/utils/dom.ts
+++ b/src/providers/utils/dom.ts
@@ -24,6 +24,7 @@ import { CoreAppProvider } from '../app';
 import { CoreConfigProvider } from '../config';
 import { CoreUrlUtilsProvider } from './url';
 import { CoreConstants } from '@core/constants';
+import { Md5 } from 'ts-md5/dist/md5';
 
 /*
  * "Utils" service with helper functions for UI, DOM elements and HTML code.
@@ -41,6 +42,7 @@ export class CoreDomUtilsProvider {
     protected instances: {[id: string]: any} = {}; // Store component/directive instances by id.
     protected lastInstanceId = 0;
     protected debugDisplay = false; // Whether to display debug messages. Store it in a variable to make it synchronous.
+    protected displayedAlerts = {}; // To prevent duplicated alerts.
 
     constructor(private translate: TranslateService, private loadingCtrl: LoadingController, private toastCtrl: ToastController,
             private alertCtrl: AlertController, private textUtils: CoreTextUtilsProvider, private appProvider: CoreAppProvider,
@@ -898,6 +900,12 @@ export class CoreDomUtilsProvider {
         }
 
         return promise.then((message) => {
+            const alertId = <string> Md5.hashAsciiStr((title || '') + '#' + (message || ''));
+
+            if (this.displayedAlerts[alertId]) {
+                // There's already an alert with the same message and title. Return it.
+                return this.displayedAlerts[alertId];
+            }
 
             const alert = this.alertCtrl.create({
                 title: title,
@@ -913,6 +921,13 @@ export class CoreDomUtilsProvider {
                 }
             });
 
+            // Store the alert and remove it when dismissed.
+            this.displayedAlerts[alertId] = alert;
+
+            alert.onDidDismiss(() => {
+                delete this.displayedAlerts[alertId];
+            });
+
             if (autocloseTime > 0) {
                 setTimeout(() => {
                     alert.dismiss();