diff --git a/checkpoint.js b/checkpoint.js
index 69a7e27..dd873c8 100644
--- a/checkpoint.js
+++ b/checkpoint.js
@@ -737,8 +737,9 @@ function CheckpointMiddleware() {
           }
         }
 
-        // Skip checkpoint for requests that don't accept HTML or are for audio/video
-        if (!req.accepts('html')) {
+        // Only checkpoint requests explicitly accepting 'text/html'
+        const acceptHeader = request.headers.get('accept') || '';
+        if (!acceptHeader.toLowerCase().includes('text/html')) {
           return next();
         }