diff --git a/config.xml b/config.xml
index 9e9d6f1..eb488d1 100644
--- a/config.xml
+++ b/config.xml
@@ -12,6 +12,7 @@
     <allow-navigation href="https://helena.express/*" />
     <allow-navigation href="https://*.stripe.com/*" />
     <allow-navigation href="https://*.stripe.network/*" />
+    <allow-navigation href="data:*" />
     <allow-intent href="http://*/*" />
     <allow-intent href="https://*/*" />
     <allow-intent href="tel:*" />
diff --git a/www/assets/js/account.js b/www/assets/js/account.js
index 7fef679..7aaa8c2 100644
--- a/www/assets/js/account.js
+++ b/www/assets/js/account.js
@@ -315,11 +315,12 @@ function loadReceiptHTMLIntoPopup(receiptid) {
         accountkey: getStorage("accountkey"),
         receiptid: receiptid
     }, function (success) {
-        app.dialog.close();
         if (success.status == "OK") {
-            $('#receiptvieweriframe').attr("src", "data:text/html," + encodeURIComponent(success.receipt.html));
+            $('#receiptvieweriframe').attr("src", "data:text/html;base64," + btoa(success.receipt.html));
             app.popup.open("#receiptViewerPopup");
+            app.dialog.close();
         } else {
+            app.dialog.close();
             app.dialog.alert(success.msg, "Error");
             sendErrorReport("Receipts", "Loading receipt", success.msg);
         }