asp.net core mvc - Keycloak in infinite loop - `invalid_grant` -


"message contains error: 'invalid_grant', error_description: 'code expired', error_uri: 'error_uri null'."

i receive error during onremotefailure event. not sure how tell keycloak reset.

            events = new openidconnectevents             {                 onauthorizationcodereceived = context =>                 {                     return task.fromresult(0);                 },                  ontokenresponsereceived = context =>                 {                     var idtoken = context.tokenendpointresponse.idtoken;                     refreshtoken = context.tokenendpointresponse.refreshtoken;                      return task.fromresult(0);                 },                  onredirecttoidentityprovider = context =>                 {                     return task.fromresult(0);                 },                  ontokenvalidated = context =>                 {                     accesstoken = context.tokenendpointresponse.accesstoken;                     context.ticket.principal.identities.first().addclaim(new claim("access_token", context.tokenendpointresponse.accesstoken));                      return task.fromresult(0);                 },                  onticketreceived = context =>                 {                     var identity = context.principal.identity claimsidentity;                     if (identity != null)                     {                         if (!context.principal.hasclaim(c => c.type == claimtypes.name) && identity.hasclaim(c => c.type == "name"))                         {                             identity.addclaim(new claim(claimtypes.name, identity.findfirst("name").value));                         }                     }                     return task.completedtask;                 },                  // here in case user denies app permissions access requested resources                 onremotefailure = context => {                     context.response.redirect("/");                     context.handleresponse();                      return task.fromresult(0);                 }             }


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