webext popup

1 files changed, 8 insertions, 6 deletions

diff --git a/extension/content_scripts/notify.js b/extension/content_scripts/notify.js
index 3a0f9001d..4a5c47c01 100644
--- a/extension/content_scripts/notify.js
+++ b/extension/content_scripts/notify.js
@@ -1,6 +1,7 @@
 // Script that is injected into pages in order to allow merchants pages to
 // query the availability of Taler.
 
+'use strict';
 
 // Listen to messages from the backend.
 chrome.runtime.onMessage.addListener(
@@ -8,11 +9,12 @@ chrome.runtime.onMessage.addListener(
     // do nothing, yet
 });
 
-
-document.addEventListener('taler-checkout-probe', function(e) {
-  let evt = new Event('taler-wallet-present');
-  document.dispatchEvent(evt);
-});
+if (document && document.body)
+{
+  document.body.addEventListener('taler-checkout-probe', function(e) {
+    let evt = new Event('taler-wallet-present');
+    document.body.dispatchEvent(evt);
+  });
+}
 
 console.log("Taler wallet: content page loaded");
-