when i use apisix connect keycloak ,it return error Invalid bearer token,but actually the token is correct

[Coderyangg]

here is my post request ,it is used to get uma token,when i post request to keycloak ,it return me a uam token

but when i use apisix,it return like this

this is my apisix settings

[woyouyitouchenfeijv]

401 ，Is this the return value of your interface