yes, $ is jQuery.
- result is ‘Assessment failed: Unable to connect to the server’.
maybe it was my backend was only use https port 80. (dose it have problem?) - I changed err.message and JSON.stringify(err).
err.message returned “Failed to fetch”, and JSON.stringify(err) returend {}.
I dont know why it returned {}. - I already tested it with my phone. it worked well. i tested url in “https://client-id.ext-twitch.tv/client-id/version/MD5/mobile.html” and only html file.
Thank you so much for your care!