From 52f01949d3e2cc0aa766ada7c2386cb2c044a711 Mon Sep 17 00:00:00 2001
From: Skylar Ittner <skylar@netsyms.com>
Date: Tue, 7 Apr 2020 15:24:31 -0600
Subject: [PATCH] Send message to parent frame with document height when
 embedded

---
 public/index.php | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/public/index.php b/public/index.php
index 5b64efb..29784fd 100644
--- a/public/index.php
+++ b/public/index.php
@@ -254,4 +254,17 @@ if (isset($_GET["backgroundcolor"]) && !empty($_GET["backgroundcolor"]) && preg_
             ?>
         </div>
     </div>
-</div>
\ No newline at end of file
+</div>
+
+<?php
+// Send message to parent frame with our height so they can adjust the iframe
+if (isset($_GET["embed"])) {
+    ?>
+    <script nonce="<?php echo $SECURE_NONCE; ?>">
+        window.addEventListener("load", function () {
+            window.postMessage(document.documentElement.scrollHeight + "px", "*");
+        });
+    </script>
+    <?php
+}
+?>
\ No newline at end of file