diff --git a/extlibs/libespfs b/extlibs/libespfs
index a646e3e..03ff681 160000
--- a/extlibs/libespfs
+++ b/extlibs/libespfs
@@ -1 +1 @@
-Subproject commit a646e3ee0594ec2301e9b3fe6373ea274eb39e39
+Subproject commit 03ff681a61cb03a43c6f008601a6e6090e9df2bd
diff --git a/src/HTTPServer.c b/src/HTTPServer.c
index 80bc246..f13d364 100644
--- a/src/HTTPServer.c
+++ b/src/HTTPServer.c
@@ -355,7 +355,7 @@ static esp_err_t GETHandler(httpd_req_t *req)
     }
 
 //check if the file can contains dynamic variables
-    if (IS_FILE_EXT(filename, ".html") || IS_FILE_EXT(filename, ".json"))
+    if (IS_FILE_EXT(filename, ".html") || IS_FILE_EXT(filename, ".json") || IS_FILE_EXT(filename, ".js"))
         isDynamicVars = true;
     do
     {