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Clean iframe tags if DIVI #297

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Merged
merged 2 commits into from
Aug 28, 2025
Merged

Clean iframe tags if DIVI #297

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5ac091a
clean iframe tags
geckod22 Aug 6, 2025
78bd2ff
function name to snake_case
geckod22 Aug 7, 2025
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36 changes: 36 additions & 0 deletions includes/Images/ImageLazyLoader.php
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Original file line number Diff line number Diff line change
Expand Up @@ -116,6 +116,33 @@ private function get_inline_script() {
window.nfdPerformance.imageOptimization.lazyLoading = ' . wp_json_encode( self::$exclusions ) . ';';
}

/**
* Cleans up content by replacing specific patterns with replacements.
* This method is used to sanitize or modify content before lazy loading is applied.
*
* @param string $pattern Regular expression pattern to match.
* @param string $search String to search for in the content.
* @param string $replace String to replace the search string with.
* @param string $content The content to be cleaned.
* @return string The cleaned content.
*/
public function clean_content( $pattern, $search, $replace, $content ) {

if ( empty( $content ) || empty( $pattern ) || empty( $search ) ) {
return $content;
}

$content = preg_replace_callback(
$pattern,
function ( $matches ) use ( $search, $replace ) {
$cleanedIframe = str_replace( $search, $replace, $matches[0] );
return $cleanedIframe;
},
$content
);
return $content;
}

/**
* Applies lazy loading to images in HTML content.
* Skips images with specified exclusion classes or attributes.
Expand All @@ -134,6 +161,15 @@ public function apply_lazy_loading( $content ) {
libxml_use_internal_errors( true );

try {
if ( function_exists( 'et_setup_theme' ) ) {
$content = $this->clean_content(
'/<iframe(.*?)<\/iframe>/s',
'<!-- [et_pb_line_break_holder] -->',
'',
$content
);
}

// Attempt to parse the HTML content using htmlentities for encoding.
$content = '<!DOCTYPE html><html><head><meta charset="UTF-8"></head><body>' . $content . '</body></html>';
if ( ! $doc->loadHTML( $content, LIBXML_HTML_NOIMPLIED | LIBXML_HTML_NODEFDTD ) ) {
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