From 963b9aab801b5003287c072c2a766d699c70b00f Mon Sep 17 00:00:00 2001
From: Christian Schneider
Date: Thu, 3 Mar 2022 15:42:53 +0100
Subject: Make it_debug::$force_html decision based on Accept header containing
 text/html, not User-Agent

---
 it_debug.class | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/it_debug.class b/it_debug.class
index 136ea99..bddd63b 100644
--- a/it_debug.class
+++ b/it_debug.class
@@ -78,7 +78,7 @@ static function setup()
 	if (ob_get_level() == 0 && $_SERVER['REMOTE_ADDR'])
 		ob_start(); # prevent later 'headers already sent' error
 
-	if ($_SERVER['REMOTE_ADDR'] && !EDC('edplain') && !it::match('curl|wget', $_SERVER['HTTP_USER_AGENT']))
+	if ($_SERVER['REMOTE_ADDR'] && !EDC('edplain') && it::match('(?:^|,)\s*text/html\s*(?:,|$)', $_SERVER['HTTP_ACCEPT']))
 		self::$force_html = true;
 }
 
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