diff --git a/src/httpapi/apiutils/getblockdata.py b/src/httpapi/apiutils/getblockdata.py
index fc9a615d..9da1ee59 100644
--- a/src/httpapi/apiutils/getblockdata.py
+++ b/src/httpapi/apiutils/getblockdata.py
@@ -8,7 +8,9 @@ class GetBlockData:
         return
 
     def get_block_data(self, bHash, decrypt=False, raw=False, headerOnly=False):
-        if not stringvalidators.validate_hash(bHash): raise onionrexceptions.InvalidHexHash("block hash not valid hash format")
+        if not stringvalidators.validate_hash(bHash):
+            raise onionrexceptions.InvalidHexHash(
+                "block hash not valid hash format")
         bl = onionrblockapi.Block(bHash)
         if decrypt:
             bl.decrypt()
diff --git a/src/httpapi/miscpublicapi/getblocks.py b/src/httpapi/miscpublicapi/getblocks.py
index 6e6773af..adaceb91 100755
--- a/src/httpapi/miscpublicapi/getblocks.py
+++ b/src/httpapi/miscpublicapi/getblocks.py
@@ -54,7 +54,7 @@ def get_block_data(public_API, b_hash):
         if not config.get('general.hide_created_blocks', True) \
                 or b_hash not in public_API.hideBlocks:
             if b_hash in public_API._too_many.get(BlockList).get():
-                block = apiutils.GetBlockData().get_block_b_hash(
+                block = apiutils.GetBlockData().get_block_data(
                     b_hash, raw=True, decrypt=False)
                 try:
                     # Encode in case data is binary
@@ -62,11 +62,10 @@ def get_block_data(public_API, b_hash):
                 except AttributeError:
                     if len(block) == 0:
                         abort(404)
-                block = bytesconverter.str_to_bytes(block)
+                #block = bytesconverter.str_to_bytes(block)
                 resp = block
     if len(resp) == 0:
         abort(404)
         resp = ""
     # Has to be octet stream, otherwise binary data fails hash check
     return Response(resp, mimetype='application/octet-stream')
-    
\ No newline at end of file
diff --git a/src/httpapi/security/public.py b/src/httpapi/security/public.py
index ac171342..74d7e0cd 100644
--- a/src/httpapi/security/public.py
+++ b/src/httpapi/security/public.py
@@ -64,11 +64,15 @@ class PublicAPISecurity:
             # Network API version
             resp.headers['X-API'] = public_api.API_VERSION
             resp.headers['Access-Control-Allow-Origin'] = "*"
+            resp.headers['Access-Control-Allow-Headers'] = "*"
+            resp.headers['Access-Control-Allow-Methods'] = "POST, GET, OPTIONS"
             # Delete some HTTP headers for Onionr user agents
             NON_NETWORK_HEADERS = (
                 'Content-Security-Policy', 'X-Frame-Options',
                 'X-Content-Type-Options', 'Feature-Policy',
-                'Clear-Site-Data', 'Referrer-Policy')
+                'Clear-Site-Data', 'Referrer-Policy',
+                'Access-Control-Allow-Origin', 'Access-Control-Allow-Headers',
+                'Access-Control-Allow-Methods')
 
             # For other nodes, we don't need to waste bits on the above headers
             try:
diff --git a/src/sneakernet/__init__.py b/src/sneakernet/__init__.py
index e32b64af..123e8997 100644
--- a/src/sneakernet/__init__.py
+++ b/src/sneakernet/__init__.py
@@ -11,6 +11,7 @@ import config
 from filepaths import block_data_location
 from etc.onionrvalues import BLOCK_EXPORT_FILE_EXT
 from onionrblocks.blockimporter import import_block_from_data
+import onionrexceptions
 """
     This program is free software: you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
@@ -37,7 +38,10 @@ class _Importer(FileSystemEventHandler):
         if not event.src_path.endswith(BLOCK_EXPORT_FILE_EXT):
             return
         with open(event.src_path, 'rb') as block_file:
-            import_block_from_data(block_file.read())
+            try:
+                import_block_from_data(block_file.read())
+            except onionrexceptions.DataExists:
+                return
             if block_data_location in event.src_path:
                 try:
                     os.remove(event.src_path)
diff --git a/static-data/www/shared/sidebar/sidebar.js b/static-data/www/shared/sidebar/sidebar.js
index 861892db..854bddc0 100644
--- a/static-data/www/shared/sidebar/sidebar.js
+++ b/static-data/www/shared/sidebar/sidebar.js
@@ -20,7 +20,6 @@ function sidebarAddPeerRegister(){
             }})
         .then((resp) => resp.text())
         .then(function(data) {
-            alert(data)
             if (data == "success"){
                 PNotify.success({
                     text: 'Peer added'