Prevent HTTP server initiating the kill process twice

Author: rastating

lib/wpxf/net/http_server.rb

@@ -84,6 +84,9 @@ def start_http_server(non_block = false)
 
   # Stop the HTTP server after it has finished processing the current request.
   def stop_http_server
+    return false if @is_stopping
+    @is_stopping = true
+
     emit_info 'Stopping HTTP server...', true
     @http_server_kill_switch = true
     @http_server_thread&.exit