diff --git a/Public/YoutubeFacade/Infrastructure/Services/YoutubeFacadeContentFilter.php b/Public/YoutubeFacade/Infrastructure/Services/YoutubeFacadeContentFilter.php
index 487b0a61..e1e2c43e 100644
--- a/Public/YoutubeFacade/Infrastructure/Services/YoutubeFacadeContentFilter.php
+++ b/Public/YoutubeFacade/Infrastructure/Services/YoutubeFacadeContentFilter.php
@@ -32,16 +32,17 @@ final class YoutubeFacadeContentFilter
      */
     public function filter(string $content): string
     {
-        // DEBUG: Log that filter is being called
-        error_log('YoutubeFacade: filter() called, content length: ' . strlen($content));
+        // DEBUG: File-based logging (bypass WP_DEBUG)
+        $logFile = '/tmp/youtube-facade-debug.log';
+        file_put_contents($logFile, date('Y-m-d H:i:s') . " - filter() called, content length: " . strlen($content) . "\n", FILE_APPEND);
 
         // Check if content has YouTube embeds at all (quick check)
         if (strpos($content, 'youtube.com/embed/') === false && strpos($content, 'youtube-nocookie.com/embed/') === false) {
-            error_log('YoutubeFacade: No YouTube embeds found in quick check');
+            file_put_contents($logFile, date('Y-m-d H:i:s') . " - No YouTube embeds found in quick check\n", FILE_APPEND);
             return $content;
         }
 
-        error_log('YoutubeFacade: YouTube embed detected, applying regex');
+        file_put_contents($logFile, date('Y-m-d H:i:s') . " - YouTube embed detected, applying regex\n", FILE_APPEND);
 
         // Pattern to match YouTube iframes
         // Handles: youtube.com/embed/ and youtube-nocookie.com/embed/
@@ -49,18 +50,18 @@ final class YoutubeFacadeContentFilter
         $pattern = '/<iframe\s+[^>]*src=["\']https?:\/\/(?:www\.)?(?:youtube\.com|youtube-nocookie\.com)\/embed\/([a-zA-Z0-9_-]+)[^"\']*["\'][^>]*>\s*<\/iframe>/is';
 
         $matchCount = 0;
-        $result = preg_replace_callback($pattern, function ($matches) use (&$matchCount) {
+        $result = preg_replace_callback($pattern, function ($matches) use (&$matchCount, $logFile) {
             $matchCount++;
             $videoId = $matches[1];
-            error_log('YoutubeFacade: Matched video ID: ' . $videoId);
+            file_put_contents($logFile, date('Y-m-d H:i:s') . " - Matched video ID: " . $videoId . "\n", FILE_APPEND);
             return $this->renderer->render($videoId);
         }, $content);
 
-        error_log('YoutubeFacade: Regex replaced ' . $matchCount . ' iframes');
+        file_put_contents($logFile, date('Y-m-d H:i:s') . " - Regex replaced " . $matchCount . " iframes\n", FILE_APPEND);
 
         // Return original content if regex failed
         if ($result === null) {
-            error_log('YoutubeFacade: preg_replace_callback returned null (regex error)');
+            file_put_contents($logFile, date('Y-m-d H:i:s') . " - preg_replace_callback returned null (regex error)\n", FILE_APPEND);
             return $content;
         }