diff --git a/app.py b/app.py
index a9b9b13..41187a8 100644
--- a/app.py
+++ b/app.py
@@ -1,7 +1,7 @@
 from flask import Flask, render_template, jsonify, request
 import boto3
 from botocore.client import Config
-import uuid
+import os
 
 
 app = Flask(__name__)
@@ -15,12 +15,11 @@ def home():
 @app.route('/get-presigned-post', methods=['POST'])
 def get_presigned_post():
     if request.method == 'POST':
-        prefix = 'custom-prefix'
-        key = str(uuid.uuid4())
+        key = request.json['fp']
         s3 = boto3.client('s3', config=Config(signature_version='s3v4'))
         post = s3.generate_presigned_post(
             Bucket='myBucket',
-            Key="{}/{}".format(prefix, key),
+            Key=key,
             ExpiresIn=3600,
         )
         return jsonify(post)
diff --git a/templates/index.html b/templates/index.html
index 71a39ed..e9f2bbb 100644
--- a/templates/index.html
+++ b/templates/index.html
@@ -55,6 +55,10 @@ <h5>
         addRemoveLinks: true,
         createImageThumbnails: false,
         previewTemplate: previewTemplate,
+        <!--Support folder upload (not compatible in some browsers)-->
+        init: function() {
+          this.hiddenFileInput.setAttribute("webkitdirectory", true);
+        },
         accept: function (file, done) {
           const req = new XMLHttpRequest();
           req.onreadystatechange = () => {
@@ -71,7 +75,9 @@ <h5>
           };
           req.open("POST",'/get-presigned-post');
           req.setRequestHeader("Content-type", "application/json; charset=UTF-8");
-          req.send();
+          req.send(JSON.stringify({
+            "fp": file.webkitRelativePath,
+          }));
         },
       });