diff --git a/platform/features/layout/src/FixedController.js b/platform/features/layout/src/FixedController.js
index c190170505..e461568853 100644
--- a/platform/features/layout/src/FixedController.js
+++ b/platform/features/layout/src/FixedController.js
@@ -256,6 +256,11 @@ define(
 
             // Position a panel after a drop event
             function handleDrop(e, id, position) {
+                // Don't handle this event if it has already been handled
+                if (e.defaultPrevented) {
+                    return;
+                }
+                e.preventDefault();
                 // Store the position of this element.
                 addElement({
                     type: "fixed.telemetry",
diff --git a/platform/features/layout/src/LayoutController.js b/platform/features/layout/src/LayoutController.js
index fc6c8aafba..1c58f92988 100644
--- a/platform/features/layout/src/LayoutController.js
+++ b/platform/features/layout/src/LayoutController.js
@@ -109,6 +109,9 @@ define(
 
             // Position a panel after a drop event
             function handleDrop(e, id, position) {
+                if (e.defaultPrevented) {
+                    return;
+                }
                 // Ensure that configuration field is populated
                 $scope.configuration = $scope.configuration || {};
                 // Make sure there is a "panels" field in the
@@ -129,6 +132,10 @@ define(
                 }
                 // Populate template-facing position for this id
                 populatePosition(id);
+                // Layout may contain embedded views which will
+                // listen for drops, so call preventDefault() so
+                // that they can recognize that this event is handled.
+                e.preventDefault();
             }
 
             // Position panes when the model field changes
@@ -220,4 +227,4 @@ define(
 
         return LayoutController;
     }
-);
\ No newline at end of file
+);
diff --git a/platform/features/layout/test/FixedControllerSpec.js b/platform/features/layout/test/FixedControllerSpec.js
index 0dae9e5597..4f3d548908 100644
--- a/platform/features/layout/test/FixedControllerSpec.js
+++ b/platform/features/layout/test/FixedControllerSpec.js
@@ -34,6 +34,7 @@ define(
                 mockFormatter,
                 mockDomainObject,
                 mockSubscription,
+                mockEvent,
                 testGrid,
                 testModel,
                 testValues,
@@ -98,6 +99,10 @@ define(
                     'subscription',
                     [ 'unsubscribe', 'getTelemetryObjects', 'getRangeValue', 'getDatum' ]
                 );
+                mockEvent = jasmine.createSpyObj(
+                    'event',
+                    [ 'preventDefault' ]
+                );
 
                 testGrid = [ 123, 456 ];
                 testModel = {
@@ -302,7 +307,7 @@ define(
                 // Notify that a drop occurred
                 testModel.composition.push('d');
                 findOn('mctDrop')(
-                    {},
+                    mockEvent,
                     'd',
                     { x: 300, y: 100 }
                 );
@@ -310,12 +315,31 @@ define(
                 // Should have added an element
                 expect(testConfiguration.elements.length).toEqual(4);
 
+                // ...and prevented default...
+                expect(mockEvent.preventDefault).toHaveBeenCalled();
+
                 // Should have triggered commit (provided by
                 // EditRepresenter) with some message.
                 expect(mockScope.commit)
                     .toHaveBeenCalledWith(jasmine.any(String));
             });
 
+            it("ignores drops when default has been prevented", function () {
+                // Avoids redundant drop-handling, WTD-1233
+                mockEvent.defaultPrevented = true;
+
+                // Notify that a drop occurred
+                testModel.composition.push('d');
+                findOn('mctDrop')(
+                    mockEvent,
+                    'd',
+                    { x: 300, y: 100 }
+                );
+
+                // Should NOT have added an element
+                expect(testConfiguration.elements.length).toEqual(3);
+            });
+
             it("unsubscribes when destroyed", function () {
                 // Make an object available
                 findWatch('domainObject')(mockDomainObject);
diff --git a/platform/features/layout/test/LayoutControllerSpec.js b/platform/features/layout/test/LayoutControllerSpec.js
index 95134c298b..5ec80755f4 100644
--- a/platform/features/layout/test/LayoutControllerSpec.js
+++ b/platform/features/layout/test/LayoutControllerSpec.js
@@ -28,6 +28,7 @@ define(
 
         describe("The Layout controller", function () {
             var mockScope,
+                mockEvent,
                 testModel,
                 testConfiguration,
                 controller;
@@ -37,6 +38,10 @@ define(
                     "$scope",
                     [ "$watch", "$on", "commit" ]
                 );
+                mockEvent = jasmine.createSpyObj(
+                    'event',
+                    [ 'preventDefault' ]
+                );
 
                 testModel = {
                     composition: [ "a", "b", "c" ]
@@ -144,17 +149,32 @@ define(
                 // Notify that a drop occurred
                 testModel.composition.push('d');
                 mockScope.$on.mostRecentCall.args[1](
-                    {},
+                    mockEvent,
                     'd',
                     { x: 300, y: 100 }
                 );
                 expect(testConfiguration.panels.d).toBeDefined();
+                expect(mockEvent.preventDefault).toHaveBeenCalled();
 
                 // Should have triggered commit (provided by
                 // EditRepresenter) with some message.
                 expect(mockScope.commit)
                     .toHaveBeenCalledWith(jasmine.any(String));
             });
+
+            it("ignores drops when default has been prevented", function () {
+                // Avoids redundant drop-handling, WTD-1233
+                mockEvent.defaultPrevented = true;
+
+                // Notify that a drop occurred
+                testModel.composition.push('d');
+                mockScope.$on.mostRecentCall.args[1](
+                    mockEvent,
+                    'd',
+                    { x: 300, y: 100 }
+                );
+                expect(testConfiguration.panels.d).not.toBeDefined();
+            });
         });
     }
-);
\ No newline at end of file
+);
diff --git a/platform/persistence/elastic/bundle.json b/platform/persistence/elastic/bundle.json
index 371b8aa17a..e7dfa1ab9d 100644
--- a/platform/persistence/elastic/bundle.json
+++ b/platform/persistence/elastic/bundle.json
@@ -17,7 +17,7 @@
             },
             {
                 "key": "ELASTIC_ROOT",
-                "value": "/elastic",
+                "value": "http://localhost:9200",
                 "priority": "fallback"
             },
             {
@@ -43,4 +43,4 @@
             }
         ]
     }
-}
\ No newline at end of file
+}