diff --git a/README b/README
index 37449fb1..cf18915f 100644
--- a/README
+++ b/README
@@ -1,50 +1,58 @@
 swh-web-ui
 ==========
 
 SWH's web application
 
 Dev mode
 --------
 
 # Configuration file sample
 
 ~/.config/swh/webapp.ini
 
     [main]
     # the dedicated storage arguments, comma separated list of values
     storage_args = http://localhost:5000/
 
     # either remote_storage or local_storage
     storage_class = remote_storage
 
     # where to log information
     log_dir = /tmp/swh/web-ui/log
     
     # for dev only
     debug = true
     
     # current server (0.0.0.0 for world opening)
     host = 127.0.0.1
     
     # its port
     port = 6543
 
+    # Upload folder for temporary upload and hash
+    upload_folder = /tmp/swh-web-ui/uploads
+    
+    # Allowed extensions for upload (commented or empty means all is accepted)
+    # Otherwise, comma separated values of extensions.
+    # upload_allowed_extensions = txt, csv
+    # upload_allowed_extensions =
+
 # Run
 
     ./bin/swh-web-ui-dev -v -c ~/.config/swh/webapp.ini
 
 In order to do anything useful with the web app you will also need a storage
 backend that the app can talk to. You can run one as follows
 
     python3 -m swh.storage.api.server ~/.config/swh/storage.ini
 
 See the doc of the swh-storage module for how to configure the backend.
 
 
 Server mode
 -----------
 
 uwsgi is used.
 cf. https://forge.softwareheritage.org/diffusion/SPPROF/browse/master/manifests/swh/deploy/webapp.pp
 
 for more information.
diff --git a/resources/test/webapp.ini b/resources/test/webapp.ini
index 503aeb15..5eba7fba 100644
--- a/resources/test/webapp.ini
+++ b/resources/test/webapp.ini
@@ -1,18 +1,26 @@
 [main]
-# the dedicated storage arguments, comma separated list of values
+# the dedicated storage arguments (comma separated list of values)
 storage_args = http://localhost:5000/
 
 # either remote_storage or local_storage
 storage_class = remote_storage
 
 # where to log information
 log_dir = /tmp/swh/web-ui/log
 
 # for dev only
 debug = true
 
 # current server (0.0.0.0 for world opening)
 host = 127.0.0.1
 
 # its port
 port = 6543
+
+# Upload folder for temporary upload and hash
+upload_folder = /tmp/swh-web-ui/uploads
+
+# Allowed extensions for upload (commented or empty means all is accepted)
+# Otherwise, comma separated values of extensions.
+# upload_allowed_extensions = txt, csv
+# upload_allowed_extensions =