From 98e69ae1114f752f06ee40bb03fd1ffd9420037f Mon Sep 17 00:00:00 2001
From: Jon Surrell <sirreal@users.noreply.github.com>
Date: Fri, 26 Dec 2025 16:10:50 +0100
Subject: [PATCH 1/6] Remove type="text/css" attribute on style tags

---
 src/wp-includes/theme.php | 13 ++++---------
 1 file changed, 4 insertions(+), 9 deletions(-)

diff --git a/src/wp-includes/theme.php b/src/wp-includes/theme.php
index 89d56d4e44bce..f71103af7d6d4 100644
--- a/src/wp-includes/theme.php
+++ b/src/wp-includes/theme.php
@@ -1893,11 +1893,9 @@ function _custom_background_cb() {
 		$color = false;
 	}
 
-	$type_attr = current_theme_supports( 'html5', 'style' ) ? '' : ' type="text/css"';
-
 	if ( ! $background && ! $color ) {
 		if ( is_customize_preview() ) {
-			printf( '<style%s id="custom-background-css"></style>', $type_attr );
+			echo '<style id="custom-background-css"></style>';
 		}
 		return;
 	}
@@ -1951,7 +1949,7 @@ function _custom_background_cb() {
 		$style .= $image . $position . $size . $repeat . $attachment;
 	}
 	?>
-<style<?php echo $type_attr; ?> id="custom-background-css">
+<style id="custom-background-css">
 body.custom-background { <?php echo trim( $style ); ?> }
 </style>
 	<?php
@@ -1965,9 +1963,8 @@ function _custom_background_cb() {
 function wp_custom_css_cb() {
 	$styles = wp_get_custom_css();
 	if ( $styles || is_customize_preview() ) :
-		$type_attr = current_theme_supports( 'html5', 'style' ) ? '' : ' type="text/css"';
 		?>
-		<style<?php echo $type_attr; ?> id="wp-custom-css">
+		<style id="wp-custom-css">
 			<?php
 			// Note that esc_html() cannot be used because `div &gt; span` is not interpreted properly.
 			echo strip_tags( $styles );
@@ -3003,11 +3000,9 @@ function _custom_logo_header_styles() {
 		$classes = (array) get_theme_support( 'custom-logo', 'header-text' );
 		$classes = array_map( 'sanitize_html_class', $classes );
 		$classes = '.' . implode( ', .', $classes );
-
-		$type_attr = current_theme_supports( 'html5', 'style' ) ? '' : ' type="text/css"';
 		?>
 		<!-- Custom Logo: hide header text -->
-		<style id="custom-logo-css"<?php echo $type_attr; ?>>
+		<style id="custom-logo-css">
 			<?php echo $classes; ?> {
 				position: absolute;
 				clip-path: inset(50%);

From c77d0c4cc36f2d43e9b6371a9ba168a607cecd3f Mon Sep 17 00:00:00 2001
From: Jon Surrell <sirreal@users.noreply.github.com>
Date: Fri, 26 Dec 2025 16:12:06 +0100
Subject: [PATCH 2/6] Remove type="text/javascript" attribute on script tags

---
 src/wp-includes/class-wp-editor.php | 10 +++++-----
 src/wp-includes/class-wp-embed.php  |  2 +-
 src/wp-includes/theme-previews.php  |  2 +-
 3 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/src/wp-includes/class-wp-editor.php b/src/wp-includes/class-wp-editor.php
index 925d9d0b56b1c..7ddd60fe871b4 100644
--- a/src/wp-includes/class-wp-editor.php
+++ b/src/wp-includes/class-wp-editor.php
@@ -978,7 +978,7 @@ public static function print_default_editor_scripts() {
 		}
 
 		?>
-		<script type="text/javascript">
+		<script>
 		window.wp = window.wp || {};
 		window.wp.editor = window.wp.editor || {};
 		window.wp.editor.getDefaultSettings = function() {
@@ -1563,7 +1563,7 @@ public static function print_tinymce_scripts() {
 
 		wp_print_scripts( array( 'wp-tinymce' ) );
 
-		echo "<script type='text/javascript'>\n" . self::wp_mce_translation() . "</script>\n";
+		echo "<script>\n" . self::wp_mce_translation() . "</script>\n";
 	}
 
 	/**
@@ -1620,7 +1620,7 @@ public static function editor_js() {
 		do_action( 'before_wp_tiny_mce', self::$mce_settings );
 		?>
 
-		<script type="text/javascript">
+		<script>
 		tinyMCEPreInit = {
 			baseURL: "<?php echo $baseurl; ?>",
 			suffix: "<?php echo $suffix; ?>",
@@ -1644,7 +1644,7 @@ public static function editor_js() {
 
 			if ( self::$ext_plugins ) {
 				// Load the old-format English strings to prevent unsightly labels in old style popups.
-				echo "<script type='text/javascript' src='{$baseurl}/langs/wp-langs-en.js?$version'></script>\n";
+				echo "<script src='{$baseurl}/langs/wp-langs-en.js?$version'></script>\n";
 			}
 		}
 
@@ -1659,7 +1659,7 @@ public static function editor_js() {
 		do_action( 'wp_tiny_mce_init', self::$mce_settings );
 
 		?>
-		<script type="text/javascript">
+		<script>
 		<?php
 
 		if ( self::$ext_plugins ) {
diff --git a/src/wp-includes/class-wp-embed.php b/src/wp-includes/class-wp-embed.php
index 7519b0bf77cf6..bf13f187dfbe9 100644
--- a/src/wp-includes/class-wp-embed.php
+++ b/src/wp-includes/class-wp-embed.php
@@ -88,7 +88,7 @@ public function maybe_run_ajax_cache() {
 			return;
 		}
 		?>
-<script type="text/javascript">
+<script>
 	jQuery( function($) {
 		$.get("<?php echo esc_url( admin_url( 'admin-ajax.php', 'relative' ) ) . '?action=oembed-cache&post=' . $post->ID; ?>");
 	} );
diff --git a/src/wp-includes/theme-previews.php b/src/wp-includes/theme-previews.php
index 8297dca0a2a70..287559c984360 100644
--- a/src/wp-includes/theme-previews.php
+++ b/src/wp-includes/theme-previews.php
@@ -69,7 +69,7 @@ function wp_attach_theme_preview_middleware() {
 function wp_block_theme_activate_nonce() {
 	$nonce_handle = 'switch-theme_' . wp_get_theme_preview_path();
 	?>
-	<script type="text/javascript">
+	<script>
 		window.WP_BLOCK_THEME_ACTIVATE_NONCE = <?php echo wp_json_encode( wp_create_nonce( $nonce_handle ), JSON_HEX_TAG | JSON_UNESCAPED_SLASHES ); ?>;
 	</script>
 	<?php

From 84c57972e3c1bd64410ea344f133ed4e2e85c33b Mon Sep 17 00:00:00 2001
From: Jon Surrell <sirreal@users.noreply.github.com>
Date: Fri, 26 Dec 2025 16:12:54 +0100
Subject: [PATCH 3/6] Remove type="text/css" on theme style tags

---
 src/wp-content/themes/twentyeleven/functions.php           | 2 +-
 src/wp-content/themes/twentyfourteen/inc/custom-header.php | 2 +-
 src/wp-content/themes/twentythirteen/inc/custom-header.php | 2 +-
 src/wp-content/themes/twentytwelve/inc/custom-header.php   | 2 +-
 4 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/wp-content/themes/twentyeleven/functions.php b/src/wp-content/themes/twentyeleven/functions.php
index 87646ad0c032b..900c1f2cf23c0 100644
--- a/src/wp-content/themes/twentyeleven/functions.php
+++ b/src/wp-content/themes/twentyeleven/functions.php
@@ -369,7 +369,7 @@ function twentyeleven_header_style() {
 	 */
 	function twentyeleven_admin_header_style() {
 		?>
-	<style type="text/css" id="twentyeleven-admin-header-css">
+	<style id="twentyeleven-admin-header-css">
 	.appearance_page_custom-header #headimg {
 		border: none;
 	}
diff --git a/src/wp-content/themes/twentyfourteen/inc/custom-header.php b/src/wp-content/themes/twentyfourteen/inc/custom-header.php
index c6e726659ce22..5569accc17c2a 100644
--- a/src/wp-content/themes/twentyfourteen/inc/custom-header.php
+++ b/src/wp-content/themes/twentyfourteen/inc/custom-header.php
@@ -103,7 +103,7 @@ function twentyfourteen_header_style() {
 	 */
 	function twentyfourteen_admin_header_style() {
 		?>
-	<style type="text/css" id="twentyfourteen-admin-header-css">
+	<style id="twentyfourteen-admin-header-css">
 	.appearance_page_custom-header #headimg {
 		background-color: #000;
 		border: none;
diff --git a/src/wp-content/themes/twentythirteen/inc/custom-header.php b/src/wp-content/themes/twentythirteen/inc/custom-header.php
index 6fb43f49c72d4..f293a46a46858 100644
--- a/src/wp-content/themes/twentythirteen/inc/custom-header.php
+++ b/src/wp-content/themes/twentythirteen/inc/custom-header.php
@@ -154,7 +154,7 @@ function twentythirteen_header_style() {
 function twentythirteen_admin_header_style() {
 	$header_image = get_header_image();
 	?>
-	<style type="text/css" id="twentythirteen-admin-header-css">
+	<style id="twentythirteen-admin-header-css">
 	.appearance_page_custom-header #headimg {
 		border: none;
 		-webkit-box-sizing: border-box;
diff --git a/src/wp-content/themes/twentytwelve/inc/custom-header.php b/src/wp-content/themes/twentytwelve/inc/custom-header.php
index fc5f8268d19f5..d7297cf0de93f 100644
--- a/src/wp-content/themes/twentytwelve/inc/custom-header.php
+++ b/src/wp-content/themes/twentytwelve/inc/custom-header.php
@@ -107,7 +107,7 @@ function twentytwelve_header_style() {
  */
 function twentytwelve_admin_header_style() {
 	?>
-	<style type="text/css" id="twentytwelve-admin-header-css">
+	<style id="twentytwelve-admin-header-css">
 	.appearance_page_custom-header #headimg {
 		border: none;
 		font-family: "Open Sans", Helvetica, Arial, sans-serif;

From f761f127369ecee6f5caa14819f0263b0986acab Mon Sep 17 00:00:00 2001
From: Jon Surrell <sirreal@users.noreply.github.com>
Date: Fri, 26 Dec 2025 16:14:35 +0100
Subject: [PATCH 4/6] Remove more redundant type attributes from themes

---
 src/wp-content/themes/twentyfifteen/js/customize-preview.js | 2 +-
 src/wp-content/themes/twentysixteen/js/customize-preview.js | 2 +-
 src/wp-content/themes/twentyten/404.php                     | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/wp-content/themes/twentyfifteen/js/customize-preview.js b/src/wp-content/themes/twentyfifteen/js/customize-preview.js
index 58ca269a68521..37fa93ecdf762 100644
--- a/src/wp-content/themes/twentyfifteen/js/customize-preview.js
+++ b/src/wp-content/themes/twentyfifteen/js/customize-preview.js
@@ -7,7 +7,7 @@
 		api = wp.customize;
 
 	if ( ! $style.length ) {
-		$style = $( 'head' ).append( '<style type="text/css" id="twentyfifteen-color-scheme-css" />' )
+		$style = $( 'head' ).append( '<style id="twentyfifteen-color-scheme-css" />' )
 		                    .find( '#twentyfifteen-color-scheme-css' );
 	}
 
diff --git a/src/wp-content/themes/twentysixteen/js/customize-preview.js b/src/wp-content/themes/twentysixteen/js/customize-preview.js
index fc99333c29147..216d31b61470c 100644
--- a/src/wp-content/themes/twentysixteen/js/customize-preview.js
+++ b/src/wp-content/themes/twentysixteen/js/customize-preview.js
@@ -7,7 +7,7 @@
 		api = wp.customize;
 
 	if ( ! style.length ) {
-		style = $( 'head' ).append( '<style type="text/css" id="twentysixteen-color-scheme-css" />' )
+		style = $( 'head' ).append( '<style id="twentysixteen-color-scheme-css" />' )
 		                    .find( '#twentysixteen-color-scheme-css' );
 	}
 
diff --git a/src/wp-content/themes/twentyten/404.php b/src/wp-content/themes/twentyten/404.php
index c67f6ca502c7c..64888d9f12134 100644
--- a/src/wp-content/themes/twentyten/404.php
+++ b/src/wp-content/themes/twentyten/404.php
@@ -22,7 +22,7 @@
 
 		</div><!-- #content -->
 	</div><!-- #container -->
-	<script type="text/javascript">
+	<script>
 		// Focus on search field after it has loaded.
 		document.getElementById('s') && document.getElementById('s').focus();
 	</script>

From a1265d3a6625d14092ab4de41c504a6836f84d21 Mon Sep 17 00:00:00 2001
From: Jon Surrell <sirreal@users.noreply.github.com>
Date: Fri, 26 Dec 2025 16:26:07 +0100
Subject: [PATCH 5/6] Remove redundant type attributes from wp-admin

---
 src/wp-admin/admin-footer.php                        |  2 +-
 src/wp-admin/admin-header.php                        |  4 ++--
 src/wp-admin/customize.php                           |  2 +-
 src/wp-admin/edit-form-advanced.php                  |  2 +-
 src/wp-admin/edit-form-comment.php                   |  2 +-
 src/wp-admin/edit-tag-form.php                       |  2 +-
 src/wp-admin/edit-tags.php                           |  2 +-
 src/wp-admin/export.php                              |  2 +-
 src/wp-admin/includes/class-bulk-upgrader-skin.php   |  8 ++++----
 src/wp-admin/includes/class-custom-image-header.php  |  4 ++--
 src/wp-admin/includes/class-wp-internal-pointers.php |  2 +-
 src/wp-admin/includes/class-wp-list-table.php        |  2 +-
 src/wp-admin/includes/class-wp-themes-list-table.php |  2 +-
 src/wp-admin/includes/class-wp-upgrader-skin.php     |  4 ++--
 src/wp-admin/includes/deprecated.php                 |  2 +-
 src/wp-admin/includes/media.php                      | 10 +++++-----
 src/wp-admin/includes/meta-boxes.php                 |  2 +-
 src/wp-admin/includes/misc.php                       |  2 +-
 src/wp-admin/includes/ms.php                         |  4 ++--
 src/wp-admin/includes/options.php                    |  4 ++--
 src/wp-admin/includes/post.php                       |  2 +-
 src/wp-admin/includes/template.php                   |  8 ++++----
 src/wp-admin/includes/update-core.php                |  2 +-
 src/wp-admin/install.php                             |  4 ++--
 src/wp-admin/media-new.php                           |  2 +-
 src/wp-admin/network/site-users.php                  |  2 +-
 src/wp-admin/network/upgrade.php                     |  2 +-
 src/wp-admin/update-core.php                         |  4 ++--
 src/wp-admin/user-edit.php                           |  4 ++--
 29 files changed, 47 insertions(+), 47 deletions(-)

diff --git a/src/wp-admin/admin-footer.php b/src/wp-admin/admin-footer.php
index c688f1a891738..abb020e046459 100644
--- a/src/wp-admin/admin-footer.php
+++ b/src/wp-admin/admin-footer.php
@@ -114,6 +114,6 @@
 ?>
 
 <div class="clear"></div></div><!-- wpwrap -->
-<script type="text/javascript">if(typeof wpOnload==='function')wpOnload();</script>
+<script>if(typeof wpOnload==='function')wpOnload();</script>
 </body>
 </html>
diff --git a/src/wp-admin/admin-header.php b/src/wp-admin/admin-header.php
index ea0245fdb119c..0c075d68272a0 100644
--- a/src/wp-admin/admin-header.php
+++ b/src/wp-admin/admin-header.php
@@ -101,7 +101,7 @@
 
 $admin_body_class = preg_replace( '/[^a-z0-9_-]+/i', '-', $hook_suffix );
 ?>
-<script type="text/javascript">
+<script>
 addLoadEvent = function(func){if(typeof jQuery!=='undefined')jQuery(function(){func();});else if(typeof wpOnload!=='function'){wpOnload=func;}else{var oldonload=wpOnload;wpOnload=function(){oldonload();func();}}};
 var ajaxurl = '<?php echo esc_js( admin_url( 'admin-ajax.php', 'relative' ) ); ?>',
 	pagenow = '<?php echo esc_js( $current_screen->id ); ?>',
@@ -253,7 +253,7 @@
 $admin_body_classes = ltrim( $admin_body_classes . ' ' . $admin_body_class );
 ?>
 <body class="wp-admin wp-core-ui no-js <?php echo esc_attr( $admin_body_classes ); ?>">
-<script type="text/javascript">
+<script>
 	document.body.className = document.body.className.replace('no-js','js');
 </script>
 
diff --git a/src/wp-admin/customize.php b/src/wp-admin/customize.php
index 141fb93dc3198..1f1a9d38b1a9e 100644
--- a/src/wp-admin/customize.php
+++ b/src/wp-admin/customize.php
@@ -159,7 +159,7 @@
 ?>
 <title><?php echo esc_html( $admin_title ); ?></title>
 
-<script type="text/javascript">
+<script>
 var ajaxurl = <?php echo wp_json_encode( admin_url( 'admin-ajax.php', 'relative' ), JSON_HEX_TAG | JSON_UNESCAPED_SLASHES ); ?>,
 	pagenow = 'customize';
 </script>
diff --git a/src/wp-admin/edit-form-advanced.php b/src/wp-admin/edit-form-advanced.php
index 0380a48a9c735..40da14af0679d 100644
--- a/src/wp-admin/edit-form-advanced.php
+++ b/src/wp-admin/edit-form-advanced.php
@@ -769,7 +769,7 @@
 ?>
 
 <?php if ( ! wp_is_mobile() && post_type_supports( $post_type, 'title' ) && '' === $post->post_title ) : ?>
-<script type="text/javascript">
+<script>
 try{document.post.title.focus();}catch(e){}
 </script>
 <?php endif; ?>
diff --git a/src/wp-admin/edit-form-comment.php b/src/wp-admin/edit-form-comment.php
index 47b44ee31dee9..cb6ab78e8f968 100644
--- a/src/wp-admin/edit-form-comment.php
+++ b/src/wp-admin/edit-form-comment.php
@@ -283,7 +283,7 @@
 </form>
 
 <?php if ( ! wp_is_mobile() ) : ?>
-<script type="text/javascript">
+<script>
 try{document.post.name.focus();}catch(e){}
 </script>
 	<?php
diff --git a/src/wp-admin/edit-tag-form.php b/src/wp-admin/edit-tag-form.php
index ec40fcc52e61f..4373c0a67f8b3 100644
--- a/src/wp-admin/edit-tag-form.php
+++ b/src/wp-admin/edit-tag-form.php
@@ -312,7 +312,7 @@
 </div>
 
 <?php if ( ! wp_is_mobile() ) : ?>
-<script type="text/javascript">
+<script>
 try{document.forms.edittag.name.focus();}catch(e){}
 </script>
 	<?php
diff --git a/src/wp-admin/edit-tags.php b/src/wp-admin/edit-tags.php
index 74381c0ec8d25..6efdeb9b0527d 100644
--- a/src/wp-admin/edit-tags.php
+++ b/src/wp-admin/edit-tags.php
@@ -689,7 +689,7 @@
 </div><!-- /wrap -->
 
 <?php if ( ! wp_is_mobile() ) : ?>
-<script type="text/javascript">
+<script>
 try{document.forms.addtag['tag-name'].focus();}catch(e){}
 </script>
 	<?php
diff --git a/src/wp-admin/export.php b/src/wp-admin/export.php
index 945eb590d018e..d43a0e689a63c 100644
--- a/src/wp-admin/export.php
+++ b/src/wp-admin/export.php
@@ -26,7 +26,7 @@
  */
 function export_add_js() {
 	?>
-<script type="text/javascript">
+<script>
 	jQuery( function($) {
 		var form = $('#export-filters'),
 			filters = form.find('.export-filters');
diff --git a/src/wp-admin/includes/class-bulk-upgrader-skin.php b/src/wp-admin/includes/class-bulk-upgrader-skin.php
index 5cdd2a56ced67..f406d160e4a57 100644
--- a/src/wp-admin/includes/class-bulk-upgrader-skin.php
+++ b/src/wp-admin/includes/class-bulk-upgrader-skin.php
@@ -141,7 +141,7 @@ public function error( $errors ) {
 			}
 			$this->error = implode( ', ', $messages );
 		}
-		echo '<script type="text/javascript">jQuery(\'.waiting-' . esc_js( $this->upgrader->update_current ) . '\').hide();</script>';
+		echo '<script>jQuery(\'.waiting-' . esc_js( $this->upgrader->update_current ) . '\').hide();</script>';
 	}
 
 	/**
@@ -172,7 +172,7 @@ public function bulk_footer() {
 	public function before( $title = '' ) {
 		$this->in_loop = true;
 		printf( '<h2>' . $this->upgrader->strings['skin_before_update_header'] . ' <span class="spinner waiting-' . $this->upgrader->update_current . '"></span></h2>', $title, $this->upgrader->update_current, $this->upgrader->update_count );
-		echo '<script type="text/javascript">jQuery(\'.waiting-' . esc_js( $this->upgrader->update_current ) . '\').css("display", "inline-block");</script>';
+		echo '<script>jQuery(\'.waiting-' . esc_js( $this->upgrader->update_current ) . '\').css("display", "inline-block");</script>';
 		// This progress messages div gets moved via JavaScript when clicking on "More details.".
 		echo '<div class="update-messages hide-if-js" id="progress-' . esc_attr( $this->upgrader->update_current ) . '"><p>';
 		$this->flush_output();
@@ -200,7 +200,7 @@ public function after( $title = '' ) {
 				)
 			);
 
-			echo '<script type="text/javascript">jQuery(\'#progress-' . esc_js( $this->upgrader->update_current ) . '\').show();</script>';
+			echo '<script>jQuery(\'#progress-' . esc_js( $this->upgrader->update_current ) . '\').show();</script>';
 		}
 		if ( $this->result && ! is_wp_error( $this->result ) ) {
 			if ( ! $this->error ) {
@@ -210,7 +210,7 @@ public function after( $title = '' ) {
 					'</p></div>';
 			}
 
-			echo '<script type="text/javascript">jQuery(\'.waiting-' . esc_js( $this->upgrader->update_current ) . '\').hide();</script>';
+			echo '<script>jQuery(\'.waiting-' . esc_js( $this->upgrader->update_current ) . '\').hide();</script>';
 		}
 
 		$this->reset();
diff --git a/src/wp-admin/includes/class-custom-image-header.php b/src/wp-admin/includes/class-custom-image-header.php
index e8a16e47dc80a..d6a5e823c8421 100644
--- a/src/wp-admin/includes/class-custom-image-header.php
+++ b/src/wp-admin/includes/class-custom-image-header.php
@@ -376,7 +376,7 @@ public function js_1() {
 			}
 		}
 		?>
-<script type="text/javascript">
+<script>
 (function($){
 	var default_color = '<?php echo esc_js( $default_color ); ?>',
 		header_text_fields;
@@ -431,7 +431,7 @@ function toggle_text() {
 	public function js_2() {
 
 		?>
-<script type="text/javascript">
+<script>
 	function onEndCrop( coords ) {
 		jQuery( '#x1' ).val(coords.x);
 		jQuery( '#y1' ).val(coords.y);
diff --git a/src/wp-admin/includes/class-wp-internal-pointers.php b/src/wp-admin/includes/class-wp-internal-pointers.php
index 09dc56ae3528e..9a2135b5279fd 100644
--- a/src/wp-admin/includes/class-wp-internal-pointers.php
+++ b/src/wp-admin/includes/class-wp-internal-pointers.php
@@ -118,7 +118,7 @@ private static function print_js( $pointer_id, $selector, $args ) {
 		}
 
 		?>
-		<script type="text/javascript">
+		<script>
 		(function($){
 			var options = <?php echo wp_json_encode( $args, JSON_HEX_TAG | JSON_UNESCAPED_SLASHES ); ?>, setup;
 
diff --git a/src/wp-admin/includes/class-wp-list-table.php b/src/wp-admin/includes/class-wp-list-table.php
index 6568b1563bef4..63f2748f7f809 100644
--- a/src/wp-admin/includes/class-wp-list-table.php
+++ b/src/wp-admin/includes/class-wp-list-table.php
@@ -1871,6 +1871,6 @@ public function _js_vars() {
 			),
 		);
 
-		printf( "<script type='text/javascript'>list_args = %s;</script>\n", wp_json_encode( $args, JSON_HEX_TAG | JSON_UNESCAPED_SLASHES ) );
+		printf( "<script>list_args = %s;</script>\n", wp_json_encode( $args, JSON_HEX_TAG | JSON_UNESCAPED_SLASHES ) );
 	}
 }
diff --git a/src/wp-admin/includes/class-wp-themes-list-table.php b/src/wp-admin/includes/class-wp-themes-list-table.php
index d7c491bd1c79e..c8cdbab8e43dc 100644
--- a/src/wp-admin/includes/class-wp-themes-list-table.php
+++ b/src/wp-admin/includes/class-wp-themes-list-table.php
@@ -357,7 +357,7 @@ public function _js_vars( $extra_args = array() ) {
 			$args = array_merge( $args, $extra_args );
 		}
 
-		printf( "<script type='text/javascript'>var theme_list_args = %s;</script>\n", wp_json_encode( $args, JSON_HEX_TAG | JSON_UNESCAPED_SLASHES ) );
+		printf( "<script>var theme_list_args = %s;</script>\n", wp_json_encode( $args, JSON_HEX_TAG | JSON_UNESCAPED_SLASHES ) );
 		parent::_js_vars();
 	}
 }
diff --git a/src/wp-admin/includes/class-wp-upgrader-skin.php b/src/wp-admin/includes/class-wp-upgrader-skin.php
index a5c80fad6dde6..831da3aebae2a 100644
--- a/src/wp-admin/includes/class-wp-upgrader-skin.php
+++ b/src/wp-admin/includes/class-wp-upgrader-skin.php
@@ -245,7 +245,7 @@ protected function decrement_update_count( $type ) {
 		}
 
 		if ( defined( 'IFRAME_REQUEST' ) ) {
-			echo '<script type="text/javascript">
+			echo '<script>
 					if ( window.postMessage && JSON ) {
 						window.parent.postMessage(
 							JSON.stringify( {
@@ -258,7 +258,7 @@ protected function decrement_update_count( $type ) {
 					}
 				</script>';
 		} else {
-			echo '<script type="text/javascript">
+			echo '<script>
 					(function( wp ) {
 						if ( wp && wp.updates && wp.updates.decrementCount ) {
 							wp.updates.decrementCount( "' . $type . '" );
diff --git a/src/wp-admin/includes/deprecated.php b/src/wp-admin/includes/deprecated.php
index 2f9b034e55044..86524fb897311 100644
--- a/src/wp-admin/includes/deprecated.php
+++ b/src/wp-admin/includes/deprecated.php
@@ -1511,7 +1511,7 @@ function post_form_autocomplete_off() {
  */
 function options_permalink_add_js() {
 	?>
-	<script type="text/javascript">
+	<script>
 		jQuery( function() {
 			jQuery('.permalink-structure input:radio').change(function() {
 				if ( 'custom' == this.value )
diff --git a/src/wp-admin/includes/media.php b/src/wp-admin/includes/media.php
index 210539681ad56..9398367951095 100644
--- a/src/wp-admin/includes/media.php
+++ b/src/wp-admin/includes/media.php
@@ -272,7 +272,7 @@ function _cleanup_image_add_caption( $matches ) {
  */
 function media_send_to_editor( $html ) {
 	?>
-	<script type="text/javascript">
+	<script>
 	var win = window.dialogArguments || opener || parent || top;
 	win.send_to_editor( <?php echo wp_json_encode( $html, JSON_HEX_TAG | JSON_UNESCAPED_SLASHES ); ?> );
 	</script>
@@ -550,7 +550,7 @@ function wp_iframe( $content_func, ...$args ) {
 	}
 
 	?>
-	<script type="text/javascript">
+	<script>
 	addLoadEvent = function(func){if(typeof jQuery!=='undefined')jQuery(function(){func();});else if(typeof wpOnload!=='function'){wpOnload=func;}else{var oldonload=wpOnload;wpOnload=function(){oldonload();func();}}};
 	var ajaxurl = '<?php echo esc_js( admin_url( 'admin-ajax.php', 'relative' ) ); ?>', pagenow = 'media-upload-popup', adminpage = 'media-upload-popup',
 	isRtl = <?php echo (int) is_rtl(); ?>;
@@ -612,7 +612,7 @@ function wp_iframe( $content_func, ...$args ) {
 	?>
 	</head>
 	<body<?php echo $body_id_attr; ?> class="wp-core-ui no-js">
-	<script type="text/javascript">
+	<script>
 	document.body.className = document.body.className.replace('no-js', 'js');
 	</script>
 	<?php
@@ -623,7 +623,7 @@ function wp_iframe( $content_func, ...$args ) {
 	do_action( 'admin_print_footer_scripts' );
 
 	?>
-	<script type="text/javascript">if(typeof wpOnload==='function')wpOnload();</script>
+	<script>if(typeof wpOnload==='function')wpOnload();</script>
 	</body>
 	</html>
 	<?php
@@ -821,7 +821,7 @@ function media_upload_form_handler() {
 
 	if ( isset( $_POST['insert-gallery'] ) || isset( $_POST['update-gallery'] ) ) {
 		?>
-		<script type="text/javascript">
+		<script>
 		var win = window.dialogArguments || opener || parent || top;
 		win.tb_remove();
 		</script>
diff --git a/src/wp-admin/includes/meta-boxes.php b/src/wp-admin/includes/meta-boxes.php
index 52f43d0b685f4..68f0717b8866e 100644
--- a/src/wp-admin/includes/meta-boxes.php
+++ b/src/wp-admin/includes/meta-boxes.php
@@ -914,7 +914,7 @@ function post_comment_meta_box( $post ) {
 		$hidden = get_hidden_meta_boxes( get_current_screen() );
 		if ( ! in_array( 'commentsdiv', $hidden, true ) ) {
 			?>
-			<script type="text/javascript">jQuery(function(){commentsBox.get(<?php echo $total; ?>, 10);});</script>
+			<script>jQuery(function(){commentsBox.get(<?php echo $total; ?>, 10);});</script>
 			<?php
 		}
 
diff --git a/src/wp-admin/includes/misc.php b/src/wp-admin/includes/misc.php
index 2454aad1c8d8b..df95166788394 100644
--- a/src/wp-admin/includes/misc.php
+++ b/src/wp-admin/includes/misc.php
@@ -1080,7 +1080,7 @@ function wp_color_scheme_settings() {
 		);
 	}
 
-	echo '<script type="text/javascript">var _wpColorScheme = ' . wp_json_encode( array( 'icons' => $icon_colors ), JSON_HEX_TAG | JSON_UNESCAPED_SLASHES ) . ";</script>\n";
+	echo '<script>var _wpColorScheme = ' . wp_json_encode( array( 'icons' => $icon_colors ), JSON_HEX_TAG | JSON_UNESCAPED_SLASHES ) . ";</script>\n";
 }
 
 /**
diff --git a/src/wp-admin/includes/ms.php b/src/wp-admin/includes/ms.php
index 10ed2e27692e0..bef197410bb83 100644
--- a/src/wp-admin/includes/ms.php
+++ b/src/wp-admin/includes/ms.php
@@ -847,7 +847,7 @@ function can_edit_network( $network_id ) {
  */
 function _thickbox_path_admin_subfolder() {
 	?>
-<script type="text/javascript">
+<script>
 var tb_pathToImage = "<?php echo esc_js( includes_url( 'js/thickbox/loadingAnimation.gif', 'relative' ) ); ?>";
 </script>
 	<?php
@@ -1010,7 +1010,7 @@ function confirm_delete_users( $users ) {
  */
 function network_settings_add_js() {
 	?>
-<script type="text/javascript">
+<script>
 jQuery( function($) {
 	var languageSelect = $( '#WPLANG' );
 	$( 'form' ).on( 'submit', function() {
diff --git a/src/wp-admin/includes/options.php b/src/wp-admin/includes/options.php
index f4a44e57f234a..5742e3ccc1ccc 100644
--- a/src/wp-admin/includes/options.php
+++ b/src/wp-admin/includes/options.php
@@ -33,7 +33,7 @@ function options_discussion_add_js() {
  */
 function options_general_add_js() {
 	?>
-<script type="text/javascript">
+<script>
 	jQuery( function($) {
 		var $siteName = $( '#wp-admin-bar-site-name' ).children( 'a' ).first(),
 			$siteIconPreview = $('#site-icon-preview-site-title'),
@@ -112,7 +112,7 @@ function options_general_add_js() {
  */
 function options_reading_add_js() {
 	?>
-<script type="text/javascript">
+<script>
 	jQuery( function($) {
 		var section = $('#front-static-pages'),
 			staticPage = section.find('input:radio[value="page"]'),
diff --git a/src/wp-admin/includes/post.php b/src/wp-admin/includes/post.php
index fdd873a88899b..d5034b3ce026c 100644
--- a/src/wp-admin/includes/post.php
+++ b/src/wp-admin/includes/post.php
@@ -2460,7 +2460,7 @@ function the_block_editor_meta_boxes() {
 	 * will not be printed again after this point.
 	 */
 	if ( wp_script_is( 'wp-edit-post', 'done' ) ) {
-		printf( "<script type='text/javascript'>\n%s\n</script>\n", trim( $script ) );
+		printf( "<script>\n%s\n</script>\n", trim( $script ) );
 	}
 
 	/*
diff --git a/src/wp-admin/includes/template.php b/src/wp-admin/includes/template.php
index b607e71d75c2c..a4870c5c18a82 100644
--- a/src/wp-admin/includes/template.php
+++ b/src/wp-admin/includes/template.php
@@ -2138,7 +2138,7 @@ function iframe_header( $title = '', $deprecated = false ) {
 	<?php
 	wp_enqueue_style( 'colors' );
 	?>
-<script type="text/javascript">
+<script>
 addLoadEvent = function(func){if(typeof jQuery!=='undefined')jQuery(function(){func();});else if(typeof wpOnload!=='function'){wpOnload=func;}else{var oldonload=wpOnload;wpOnload=function(){oldonload();func();}}};
 function tb_close(){var win=window.dialogArguments||opener||parent||top;win.tb_remove();}
 var ajaxurl = '<?php echo esc_js( admin_url( 'admin-ajax.php', 'relative' ) ); ?>',
@@ -2187,7 +2187,7 @@ function tb_close(){var win=window.dialogArguments||opener||parent||top;win.tb_r
 	$admin_body_classes = ltrim( $admin_body_classes . ' ' . $admin_body_class );
 	?>
 <body <?php echo $admin_body_id; ?>class="wp-admin wp-core-ui no-js iframe <?php echo esc_attr( $admin_body_classes ); ?>">
-<script type="text/javascript">
+<script>
 (function(){
 var c = document.body.className;
 c = c.replace(/no-js/, 'js');
@@ -2226,7 +2226,7 @@ function iframe_footer() {
 	do_action( 'admin_print_footer_scripts' );
 	?>
 	</div>
-<script type="text/javascript">if(typeof wpOnload==='function')wpOnload();</script>
+<script>if(typeof wpOnload==='function')wpOnload();</script>
 </body>
 </html>
 	<?php
@@ -2495,7 +2495,7 @@ function get_media_states( $post ) {
  */
 function compression_test() {
 	?>
-	<script type="text/javascript">
+	<script>
 	var compressionNonce = <?php echo wp_json_encode( wp_create_nonce( 'update_can_compress_scripts' ), JSON_HEX_TAG | JSON_UNESCAPED_SLASHES ); ?>;
 	var testCompression = {
 		get : function(test) {
diff --git a/src/wp-admin/includes/update-core.php b/src/wp-admin/includes/update-core.php
index e417966c130fc..0d6431dff5a60 100644
--- a/src/wp-admin/includes/update-core.php
+++ b/src/wp-admin/includes/update-core.php
@@ -1722,7 +1722,7 @@ function _redirect_to_about_wordpress( $new_version ) {
 	);
 	echo '</div>';
 	?>
-<script type="text/javascript">
+<script>
 window.location = 'about.php?updated';
 </script>
 	<?php
diff --git a/src/wp-admin/install.php b/src/wp-admin/install.php
index 1bd34a4973d51..7fcacab9bd6c9 100644
--- a/src/wp-admin/install.php
+++ b/src/wp-admin/install.php
@@ -470,13 +470,13 @@ function display_setup_form( $error = null ) {
 
 if ( ! wp_is_mobile() ) {
 	?>
-<script type="text/javascript">var t = document.getElementById('weblog_title'); if (t){ t.focus(); }</script>
+<script>var t = document.getElementById('weblog_title'); if (t){ t.focus(); }</script>
 	<?php
 }
 
 wp_print_scripts( $scripts_to_print );
 ?>
-<script type="text/javascript">
+<script>
 jQuery( function( $ ) {
 	$( '.hide-if-no-js' ).removeClass( 'hide-if-no-js' );
 } );
diff --git a/src/wp-admin/media-new.php b/src/wp-admin/media-new.php
index 389817a0fef29..448c1c7914ff3 100644
--- a/src/wp-admin/media-new.php
+++ b/src/wp-admin/media-new.php
@@ -77,7 +77,7 @@
 
 	<?php media_upload_form(); ?>
 
-	<script type="text/javascript">
+	<script>
 	var post_id = <?php echo absint( $post_id ); ?>, shortform = 3;
 	</script>
 	<input type="hidden" name="post_id" id="post_id" value="<?php echo absint( $post_id ); ?>" />
diff --git a/src/wp-admin/network/site-users.php b/src/wp-admin/network/site-users.php
index 723a938250f08..070a8472e473d 100644
--- a/src/wp-admin/network/site-users.php
+++ b/src/wp-admin/network/site-users.php
@@ -236,7 +236,7 @@
 require_once ABSPATH . 'wp-admin/admin-header.php';
 ?>
 
-<script type="text/javascript">
+<script>
 var current_site_id = <?php echo absint( $id ); ?>;
 </script>
 
diff --git a/src/wp-admin/network/upgrade.php b/src/wp-admin/network/upgrade.php
index 79e40f45fbbc3..f4e65b2e9b5fe 100644
--- a/src/wp-admin/network/upgrade.php
+++ b/src/wp-admin/network/upgrade.php
@@ -124,7 +124,7 @@
 		}
 		echo '</ul>';
 		?><p><?php _e( 'If your browser does not start loading the next page automatically, click this link:' ); ?> <a class="button" href="upgrade.php?action=upgrade&amp;n=<?php echo ( $n + 5 ); ?>"><?php _e( 'Next Sites' ); ?></a></p>
-		<script type="text/javascript">
+		<script>
 		<!--
 		function nextpage() {
 			location.href = "upgrade.php?action=upgrade&n=<?php echo ( $n + 5 ); ?>";
diff --git a/src/wp-admin/update-core.php b/src/wp-admin/update-core.php
index aab3bdd259528..17094849a1dec 100644
--- a/src/wp-admin/update-core.php
+++ b/src/wp-admin/update-core.php
@@ -210,7 +210,7 @@ function dismissed_updates() {
 		$show_text = esc_js( __( 'Show hidden updates' ) );
 		$hide_text = esc_js( __( 'Hide hidden updates' ) );
 		?>
-		<script type="text/javascript">
+		<script>
 			jQuery( function( $ ) {
 				$( '#show-dismissed' ).on( 'click', function() {
 					var isExpanded = ( 'true' === $( this ).attr( 'aria-expanded' ) );
@@ -935,7 +935,7 @@ function do_core_upgrade( $reinstall = false ) {
 	);
 	?>
 	</div>
-	<script type="text/javascript">
+	<script>
 	window.location = '<?php echo esc_url( self_admin_url( 'about.php?updated' ) ); ?>';
 	</script>
 	<?php
diff --git a/src/wp-admin/user-edit.php b/src/wp-admin/user-edit.php
index 561dea1a99564..b812fc8935d1b 100644
--- a/src/wp-admin/user-edit.php
+++ b/src/wp-admin/user-edit.php
@@ -967,13 +967,13 @@
 		break;
 }
 ?>
-<script type="text/javascript">
+<script>
 	if (window.location.hash == '#password') {
 		document.getElementById('pass1').focus();
 	}
 </script>
 
-<script type="text/javascript">
+<script>
 	jQuery( function( $ ) {
 		var languageSelect = $( '#locale' );
 		$( 'form' ).on( 'submit', function() {

From f61fd93c66b62f821bb0d5c23cbaaffd0a3e2a4d Mon Sep 17 00:00:00 2001
From: Jon Surrell <sirreal@users.noreply.github.com>
Date: Fri, 26 Dec 2025 16:26:30 +0100
Subject: [PATCH 6/6] Remove redundant type attribute from readme.html

---
 src/readme.html | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/readme.html b/src/readme.html
index e1528c1ac6cea..8696b0505a913 100644
--- a/src/readme.html
+++ b/src/readme.html
@@ -5,7 +5,7 @@
 	<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
 	<meta name="robots" content="noindex,nofollow" />
 	<title>WordPress &#8250; ReadMe</title>
-	<link rel="stylesheet" href="wp-admin/css/install.css?ver=20100228" type="text/css" />
+	<link rel="stylesheet" href="wp-admin/css/install.css?ver=20100228" />
 </head>
 <body>
 <h1 id="logo">