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Fix for URL sanitization in wp_kses_bad_protocol_once()
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Merges [45997] to the 4.8 branch. Props irsdl, sstoqnov, whyisjake. Built from https://develop.svn.wordpress.org/branches/4.8@46006 git-svn-id: http://core.svn.wordpress.org/branches/4.8@45817 1a063a9b-81f0-0310-95a4-ce76da25c4cd
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@ -1384,6 +1384,7 @@ function wp_kses_html_error($string) {
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* @return string Sanitized content
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*/
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function wp_kses_bad_protocol_once($string, $allowed_protocols, $count = 1 ) {
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$string = preg_replace( '/(�*58(?![;0-9])|�*3a(?![;a-f0-9]))/i', '$1;', $string );
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$string2 = preg_split( '/:|�*58;|�*3a;/i', $string, 2 );
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if ( isset($string2[1]) && ! preg_match('%/\?%', $string2[0]) ) {
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$string = trim( $string2[1] );
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