Hi, I have been wanting trying to authorize my app as stated here
But I keep getting error saying missing param or incorrect value. I have already gone through with LiveChat support and it seems like the request I have been making to be correct but not too sure why it is happening and suggested that I raise an issue in github, Livechat Oauth not working as expected. · Issue #2 · livechat/accounts-sdk · GitHub.
My request sample(the redirect uri is already whitelisted):