From bb5e16e3a63121ef3e806c785575ee7a4f53620e Mon Sep 17 00:00:00 2001
From: Noam Rosenthal <noamr@users.noreply.github.com>
Date: Mon, 23 Oct 2023 17:58:24 +0100
Subject: [PATCH] Add note for cached frames

---
 source | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/source b/source
index 2a50914c979..f1506a23f52 100644
--- a/source
+++ b/source
@@ -93611,6 +93611,12 @@ dictionary <dfn dictionary>PageRevealEventInit</dfn> : <span>EventInit</span> {
    Otherwise return null.</p></li>
   </ol>
 
+  <p class="note">Though <code data-x="event-pagereveal">pagereveal</code> is guaranteed to be fired
+  during the first <span>update the rendering</span> step, which displays an up-to-date version of
+  the page, user agents are free to display cached frame of the page before firing it. This prevents
+  the presence of a <code data-x="event-pagereveal">pagereveal</code> handler from delaying the
+  presentation of such cached frame.</p>
+
   </div>