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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.
@fanoush
for me reloading the IDE page often helps (shift + reload button), or maybe exit/relaunch Chrome,
see also https://forum.espruino.com/conversations/387281/
Can you try to paste text of 22 characters and then only 21 if it is MTU issue?