diff --git a/res/css/views/dialogs/_ModalWidgetDialog.scss b/res/css/views/dialogs/_ModalWidgetDialog.scss
index f0eb19edb3..919a98723e 100644
--- a/res/css/views/dialogs/_ModalWidgetDialog.scss
+++ b/res/css/views/dialogs/_ModalWidgetDialog.scss
@@ -20,4 +20,9 @@ limitations under the License.
             margin-left: 8px;
         }
     }
+
+    iframe {
+        width: 100%;
+        height: 450px;
+    }
 }
diff --git a/src/components/views/dialogs/ModalWidgetDialog.tsx b/src/components/views/dialogs/ModalWidgetDialog.tsx
index 60f5a09666..f4226522ee 100644
--- a/src/components/views/dialogs/ModalWidgetDialog.tsx
+++ b/src/components/views/dialogs/ModalWidgetDialog.tsx
@@ -121,14 +121,11 @@ export default class ModalWidgetDialog extends React.PureComponent<IProps, IStat
             className="mx_ModalWidgetDialog"
             contentId="mx_Dialog_content"
             onFinished={this.props.onFinished}
-            hasCancel={false}
         >
             <div>
                 <iframe
                     ref={this.appFrame}
-                    // sandbox="allow-forms allow-scripts"
-                    width={700} // TODO
-                    height={450} // TODO
+                    // sandbox="allow-forms allow-scripts" TODO
                     src={widgetUrl.toString()}
                     onLoad={this.onLoad}
                 />
diff --git a/src/widgets/WidgetApi.ts b/src/widgets/WidgetApi.ts
index 6ce4f0e47d..15607f6907 100644
--- a/src/widgets/WidgetApi.ts
+++ b/src/widgets/WidgetApi.ts
@@ -147,7 +147,7 @@ export class WidgetApi extends EventEmitter {
                         this.replyToRequest(<ToWidgetRequest>payload, {});
                         break;
 
-                    // Ack, handle by caller
+                    // Ack, handled by caller
                     case KnownWidgetActions.Terminate:
                     case KnownWidgetActions.ButtonClicked:
                     case KnownWidgetActions.GetWidgetConfig: