use cloneInto when passing objects from content_script to page

1 files changed, 6 insertions, 2 deletions

diff --git a/content_scripts/notify.ts b/content_scripts/notify.ts
index ed704aaf0..64f65e7e5 100644
--- a/content_scripts/notify.ts
+++ b/content_scripts/notify.ts
@@ -149,7 +149,11 @@ namespace TalerNotify {
         }
         let responder = (msg?: any) => {
           let fullMsg = Object.assign({}, msg, {callId});
-          let evt = new CustomEvent(type + "-result", {detail: fullMsg});
+          let opts = { detail: fullMsg };
+          if ("function" == typeof cloneInto) {
+            opts = cloneInto(opts, document.defaultView);
+          }
+          let evt = new CustomEvent(type + "-result", opts);
           document.dispatchEvent(evt);
         };
         handler(e.detail, responder);
@@ -319,4 +323,4 @@ namespace TalerNotify {
       });
     });
   }
-}
\ No newline at end of file
+}