Prevent caching plugins from caching markdown responses

Author: retlehs

post-content-to-markdown.php

@@ -25,6 +25,16 @@
     }
 }
 
+/**
+ * Tell caching plugins (WP Super Cache, etc.) to skip caching for markdown requests.
+ * This runs early to ensure the constant is set before caching plugins check it.
+ */
+add_action('plugins_loaded', function () {
+    if (isMarkdownRequested() && !defined('DONOTCACHEPAGE')) {
+        define('DONOTCACHEPAGE', true);
+    }
+});
+
 /**
  * Check if Markdown format is requested via Accept header or query parameter
  */