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Media: In `img_caption_shortcode()`, make sure `$id` and `$caption_id` are always defined. 

See #34595.

git-svn-id: https://develop.svn.wordpress.org/trunk@42706 602fd350-edb4-49c9-b593-d223f7449a82
This commit is contained in:
Sergey Biryukov 2018-02-12 22:35:56 +00:00
parent aee17a059f
commit 954afd1571
1 changed files with 2 additions and 2 deletions
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4
src/wp-includes/media.php
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@ -1560,6 +1560,8 @@ function img_caption_shortcode( $attr, $content = null ) {
return $content;
}
$id = $caption_id = $describedby = '';
if ( $atts['id'] ) {
$atts['id'] = sanitize_html_class( $atts['id'] );
$id = 'id="' . esc_attr( $atts['id'] ) . '" ';
@ -1571,8 +1573,6 @@ function img_caption_shortcode( $attr, $content = null ) {
$atts['caption_id'] = 'caption-' . str_replace( '_', '-', $atts['id'] );
}
$describedby = '';
if ( $atts['caption_id'] ) {
$caption_id = 'id="' . esc_attr( $atts['caption_id'] ) . '" ';
$describedby = 'aria-describedby="' . esc_attr( $atts['caption_id'] ) . '" ';