As @DrAzzy says, it could be a result of the connection not getting closed.
Do you have the up to date firmware? The old one had some issues where connections didn't get closed if you requested a page with only one or two bytes on it.
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
As @DrAzzy says, it could be a result of the connection not getting closed.
Do you have the up to date firmware? The old one had some issues where connections didn't get closed if you requested a page with only one or two bytes on it.