diff --git a/src/handlers/proxy.rs b/src/handlers/proxy.rs
index 359f0c2..a67470d 100644
--- a/src/handlers/proxy.rs
+++ b/src/handlers/proxy.rs
@@ -34,6 +34,7 @@ pub async fn proxy_handler(
         "png" => "image/png",
         "webp" => "image/webp",
         "gif" => "image/gif",
+        "jfif" => "image/jpeg",
         "mp3" => "audio/mpeg",
         "wav" => "audio/x-wav",
         "ogg" => "audio/ogg",
@@ -139,6 +140,7 @@ pub async fn proxy_handler(
             let filepath = format!("production/{}/{}.{}", ct_parts[0], base_filename, extension); // NOTE: original ext
 
             let exists_in_storj = check_file_exists(&state.storj_client, &state.bucket, &filepath).await?;
+            warn!("Checking existence in Storj: {}", exists_in_storj);
 
             if exists_in_storj {
                 warn!("file {} exists in storj, try to generate thumbnails", filepath);
@@ -157,6 +159,8 @@ pub async fn proxy_handler(
             }
 
             let exists_in_aws = check_file_exists(&state.aws_client, &state.bucket, &filepath).await?;
+            warn!("Checking existence in AWS: {}", exists_in_aws);
+
             if exists_in_aws {
                 match load_file_from_s3(&state.aws_client, &state.bucket, &filepath).await {
                     Ok(filedata) => {