Hi. Any Chrome Extensions developer here?
I've developed a chrome extension and I'm trying to provide Free Trial to users using Google License API. I'm taking the code here(https://stackoverflow.com/questions/25707443/chrome-web-store-payments-free-trial-for-extension) as reference. Getting OAuth token is working fine. But after that when I'm making a call to the license API, I'm getting below 500 error(in link). I'm not sure what I'm doing wrong. Any help is appreciated!