I just found a commit of @Gordon which adds the functionality of headers and post requests https://github.com/gfwilliams/Gadgetbridge/commit/4cd53fa9b64fa668960e27b03fed07edb7237240 . So it looks like it will be possible in the future, when the new release is published.
@user148386 started
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.
I just found a commit of @Gordon which adds the functionality of headers and post requests https://github.com/gfwilliams/Gadgetbridge/commit/4cd53fa9b64fa668960e27b03fed07edb7237240 . So it looks like it will be possible in the future, when the new release is published.