I am not sure you want people to use your test server to call for test messages, but if you're not sure it can be up all the time, maybe delete the google-services.json contents.
I do suspect it is a HTTPS redirect issue possibly, although using that still gives the same nginx gateway error.
I am not sure you want people to use your test server to call for test messages, but if you're not sure it can be up all the time, maybe delete the google-services.json contents. I do suspect it is a HTTPS redirect issue possibly, although using that still gives the same nginx gateway error.
My GET request:
502 Bad Gateway