1 files changed, 9 insertions, 0 deletions
diff --git a/ext/mixed/js/display.js b/ext/mixed/js/display.js
index 3f8a43ab..c3498e85 100644
--- a/ext/mixed/js/display.js
+++ b/ext/mixed/js/display.js
@@ -82,6 +82,7 @@ class Display extends EventDispatcher {
             documentUtil: this._documentUtil
         });
         this._mode = null;
+        this._ownerFrameId = null;
 
         this.registerActions([
             ['close',            () => { this.onEscape(); }],
@@ -147,6 +148,14 @@ class Display extends EventDispatcher {
         return this._mode;
     }
 
+    get ownerFrameId() {
+        return this._ownerFrameId;
+    }
+
+    set ownerFrameId(value) {
+        this._ownerFrameId = value;
+    }
+
     async prepare() {
         this._updateMode();
         this._setInteractive(true);