Files F65711236

T401099-core-minimal.patch
cscott (C. Scott Ananian)
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	cscott
	Aug 4 2025, 3:01 PM

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759 B

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T401099-core-minimal.patch
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	diff --git a/includes/parser/Sanitizer.php b/includes/parser/Sanitizer.php
	index 2d6934bb93a..077bae29f85 100644
	--- a/includes/parser/Sanitizer.php
	+++ b/includes/parser/Sanitizer.php
	@@ -512,8 +512,11 @@ class Sanitizer {
	# * Disallow data attributes used by MediaWiki code
	# * Ensure that the attribute is not namespaced by banning
	# colons.
	+ # * Ensure attribute name will be accepted by the HTML
	+ # parser; see
	+ # https://github.com/whatwg/dom/issues/849#issuecomment-1007541209
	if ( (
	- !preg_match( '/^data-[^:]*$/i', $attribute ) &&
	+ !preg_match( '\|^data-[^:= \t\r\n/>\0]*$\|i', $attribute ) &&
	!array_key_exists( $attribute, $allowed )
	) \|\| self::isReservedDataAttribute( $attribute ) ) {
	continue;

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