I understand that NodeMCU with ESP8266 is not a supported board on-line with web editor. Has anyone out there tried some kind of work around with a Chromebook where the entire Arduino IDE and required libraries is all uploaded to a thumbdrive and then used web editor to address that drive to get and use the ESP8266 board? This is all over my head but I see that 60 % of US K-12 schools use Chromebooks at some level so there would be demand for this kind of solution if it were possible.
I don’t see any way it could be done. I think you would be much better off to just use the regular Arduino IDE on the Chromebooks, following these instructions: