Client.js:140     POST https://platform.devtest.ringcentral.com/restapi/oauth/token 400
(anonymous) @ Client.js:140
(anonymous) @ Client.js:56
(anonymous) @ Client.js:37
(anonymous) @ Client.js:31
a @ Client.js:27
t._loadResponse @ Client.js:138
(anonymous) @ Client.js:111
(anonymous) @ Client.js:56
(anonymous) @ Client.js:37
(anonymous) @ Client.js:31
a @ Client.js:27
t.sendRequest @ Client.js:103
(anonymous) @ Platform.js:793
(anonymous) @ Platform.js:56
(anonymous) @ Platform.js:37
a @ Platform.js:28
Promise.then (async)
s @ Platform.js:30
(anonymous) @ Platform.js:31
u @ Platform.js:27
t.sendRequest @ Platform.js:784
(anonymous) @ Platform.js:869
(anonymous) @ Platform.js:56
(anonymous) @ Platform.js:37
(anonymous) @ Platform.js:31
u @ Platform.js:27
t.send @ Platform.js:834
(anonymous) @ Platform.js:942
(anonymous) @ Platform.js:56
(anonymous) @ Platform.js:37
(anonymous) @ Platform.js:31
u @ Platform.js:27
t._tokenRequest @ Platform.js:929
(anonymous) @ Platform.js:504
(anonymous) @ Platform.js:56
(anonymous) @ Platform.js:37
(anonymous) @ Platform.js:31
u @ Platform.js:27
t.login @ Platform.js:449
(anonymous) @ index.js:620
c @ pubnub.min.js:9
(anonymous) @ pubnub.min.js:9
(anonymous) @ pubnub.min.js:9
S @ index.js:102
a @ index.js:104
(anonymous) @ index.js:104
(anonymous) @ index.js:104
(anonymous) @ index.js:645
value @ proxify.js:22
(anonymous) @ index.js:275
c @ pubnub.min.js:9
(anonymous) @ pubnub.min.js:9
(anonymous) @ pubnub.min.js:9
_ @ index.js:100
a @ index.js:102
(anonymous) @ index.js:102
(anonymous) @ index.js:102
(anonymous) @ index.js:296
(anonymous) @ index.js:112
p @ regeneratorRuntime.js:44
(anonymous) @ regeneratorRuntime.js:125
(anonymous) @ regeneratorRuntime.js:69
d @ asyncToGenerator.js:3
a @ asyncToGenerator.js:22
(anonymous) @ asyncToGenerator.js:27
(anonymous) @ asyncToGenerator.js:19
(anonymous) @ index.js:139
n.value.regeneratorRuntime.mark.regeneratorRuntime.wrap.oAuthReady.window.oAuthCallback @ index.js:233
(anonymous) @ ringcentral.github.i…dable/redirect.js:2
load (async)
n @ ringcentral.github.i…dable/redirect.js:2
(anonymous) @ ringcentral.github.i…dable/redirect.js:2
(anonymous) @ ringcentral.github.i…dable/redirect.js:2
(anonymous) @ ringcentral.github.i…dable/redirect.js:2
index.js:115 oauth error:  Error: Client authentication is required
    at t.<anonymous> (Client.js:115:35)
    at Client.js:56:23
    at Object.next (Client.js:37:53)
    at a (Client.js:28:58)
(anonymous) @ index.js:115
p @ regeneratorRuntime.js:44
(anonymous) @ regeneratorRuntime.js:125
(anonymous) @ regeneratorRuntime.js:69
d @ asyncToGenerator.js:3
u @ asyncToGenerator.js:25
Promise.then (async)
d @ asyncToGenerator.js:12
a @ asyncToGenerator.js:22
(anonymous) @ asyncToGenerator.js:27
(anonymous) @ asyncToGenerator.js:19
(anonymous) @ index.js:139
n.value.regeneratorRuntime.mark.regeneratorRuntime.wrap.oAuthReady.window.oAuthCallback @ index.js:233
(anonymous) @ ringcentral.github.i…dable/redirect.js:2
load (async)
n @ ringcentral.github.i…dable/redirect.js:2
(anonymous) @ ringcentral.github.i…dable/redirect.js:2
(anonymous) @ ringcentral.github.i…dable/redirect.js:2
(anonymous) @ ringcentral.github.i…dable/redirect.js:2