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I want to prepend an SVG icon to the Add to Cart message in WooCommerce, but for some reason the SVG is not shown in the message.
I have the following code in myfunctions.php file:
function update_add_to_cart_message($message, $product_id) {
$icon = '<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M0 0h24v24H0z" fill="none"></path><path d="M9 16.17L4.83 12l-1.42 1.41L9 19 21 7l-1.41-1.41z"></path></svg>';
$message = $icon . $message;
return $message;
}
add_filter('wc_add_to_cart_message_html', 'update_add_to_cart_message', 10, 2);
If I replace the svg with something like$icon = '<span>Test</span>';, it works fine.
Why isn't this working and what do I need to do to fix it? I could of course update the WooCommerce template file, but I prefer not to.
WooCommerce is usingwp_kses() function withwp_kses_allowed_html('post') context to filter notices https://docs.woocommerce.com/wc-apidocs/source-function-wc_add_notice.html#220.post context doesn't have<svg> and<path> tags whitelisted, this is the reason why your svg code is getting stripped.
As a blunt workaround, you can hook to post context:
function wp_kses_allowed_html_63014342( $allowedposttags, $context ) {
if ( $context === 'post' ) {
$allowedposttags['svg'] = array(
'xmlns' => true,
'viewbox' => true,
);
$allowedposttags['path'] = array(
'd' => true,
'fill' => true,
);
}
return $allowedposttags;
}
add_filter( 'wp_kses_allowed_html', 'wp_kses_allowed_html_63014342', 10, 2 );
Note this would allow these tags for everything that is usingpost context though.
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