diff --git a/libvncserver/httpd.c b/libvncserver/httpd.c
index 26d49af..efb97b3 100644
--- a/libvncserver/httpd.c
+++ b/libvncserver/httpd.c
@@ -462,6 +462,8 @@ httpProcessInput(rfbScreenInfoPtr rfbScreen)
 	contentType = "Content-Type: text/css\r\n";
     else if(ext && strcasecmp(ext, ".svg") == 0)
 	contentType = "Content-Type: image/svg+xml\r\n";
+    else if(ext && strcasecmp(ext, ".js") == 0)
+	contentType = "Content-Type: application/javascript\r\n";
     rfbWriteExact(&cl, contentType, strlen(contentType));
     /* end the header */
     rfbWriteExact(&cl, "\r\n", 2);