From b25674b3a0424c8104463e621c93830407b0ad84 Mon Sep 17 00:00:00 2001
From: Joseph <joseph@verifiedjoseph.com>
Date: Mon, 8 Mar 2021 07:17:12 +0000
Subject: [PATCH] [HtmlFormat] Use str_ireplace() when creating feed format
 URLs (#2008)

Fixes feed format URLs not being created with correct format value if html feed URL uses a lowercase format value.
---
 formats/HtmlFormat.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/formats/HtmlFormat.php b/formats/HtmlFormat.php
index 49d9ca68..ee60418d 100644
--- a/formats/HtmlFormat.php
+++ b/formats/HtmlFormat.php
@@ -19,7 +19,7 @@ class HtmlFormat extends FormatAbstract {
 				continue;
 			}
 
-			$query = str_replace('format=Html', 'format=' . $format, htmlentities($_SERVER['QUERY_STRING']));
+			$query = str_ireplace('format=Html', 'format=' . $format, htmlentities($_SERVER['QUERY_STRING']));
 			$buttons .= $this->buildButton($format, $query) . PHP_EOL;
 
 			$mime = $formatFac->create($format)->getMimeType();