MOBILE-1527 messages: Fix problems with top right icon image

Author: dpalou

www/addons/messages/controllers/index.js

@@ -36,7 +36,8 @@ angular.module('mm.addons.messages')
             }).then(function(user) {
                 // Verify that no other user was loaded while the async call was in progress.
                 if ($scope.userId == userId) {
-                    $scope.profileLink = user.profileimageurl;
+                    // Use a default icon if no image URL available.
+                    $scope.profileLink = user.profileimageurl || true;
                 }
             });
         }

www/addons/messages/templates/discussion.html

@@ -3,7 +3,7 @@
 
     <ion-nav-buttons side="secondary">
         <a ng-if="profileLink" mm-user-link userid="{{userId}}" aria-label="{{ 'mm.user.viewprofile' | translate }}">
-            <img ng-if="profileLink && profileLink !== true" class="button mm-bar-button-image" ng-src="{{profileLink}}">
+            <img ng-if="profileLink && profileLink !== true" class="button mm-bar-button-image" ng-src="{{profileLink}}" mm-external-content>
             <span ng-if="profileLink === true" class="button button-icon icon ion-person"></span>
         </a>
     </ion-nav-buttons>

www/addons/messages/templates/index.html

@@ -1,7 +1,7 @@
 <ion-view view-title="{{ 'mma.messages.messages' | translate }}">
     <ion-nav-buttons side="secondary">
         <a ng-if="profileLink" mm-user-link userid="{{userId}}" aria-label="{{ 'mm.user.viewprofile' | translate }}">
-            <img ng-if="profileLink && profileLink !== true" class="button mm-bar-button-image" ng-src="{{profileLink}}">
+            <img ng-if="profileLink && profileLink !== true" class="button mm-bar-button-image" ng-src="{{profileLink}}" mm-external-content>
             <span ng-if="profileLink === true" class="button button-icon icon ion-person"></span>
         </a>
     </ion-nav-buttons>