From 09f254361f1fe8a563b8a90fe6a4d269f4b11514 Mon Sep 17 00:00:00 2001
From: Timmy Willison <4timmywil@gmail.com>
Date: Wed, 17 Feb 2021 16:19:04 -0500
Subject: [PATCH] Support: ensure display is set to block for the support div

* Support: ensure display is set to block for the support div

- Fixes an issue with the support test in iframes in Android 8 Chrome 86+,
  where display: inline resulted in unexpected height values.

Close gh-4845
Fixes gh-4832
---
 src/css/support.js | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/src/css/support.js b/src/css/support.js
index 9e6a915d2..48f95dc36 100644
--- a/src/css/support.js
+++ b/src/css/support.js
@@ -33,6 +33,15 @@ support.reliableTrDimensions = function() {
 		tr.style.height = "1px";
 		div.style.height = "9px";
 
+		// Support: Android Chrome 86+
+		// In our bodyBackground.html iframe,
+		// display for all div elements is set to "inline",
+		// which causes a problem only in Android Chrome, but
+		// not consistently across all devices.
+		// Ensuring the div is display: block
+		// gets around this issue.
+		div.style.display = "block";
+
 		documentElement
 			.appendChild( table )
 			.appendChild( tr )