From ecfd74aac02e58b3483c91a39059b69aff1c750a Mon Sep 17 00:00:00 2001
From: Ethan Lam <ethanmlam888@gmail.com>
Date: Sat, 2 May 2026 01:33:05 +0000
Subject: [PATCH] fix: use basic auth header for OAuth2 token exchange

---
 auth/auth.go | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/auth/auth.go b/auth/auth.go
index 33bfe68..b0e2c9c 100644
--- a/auth/auth.go
+++ b/auth/auth.go
@@ -195,8 +195,9 @@ func (a *Auth) OAuth2Flow(username string) (string, error) {
 		ClientID:     a.clientID,
 		ClientSecret: a.clientSecret,
 		Endpoint: oauth2.Endpoint{
-			AuthURL:  a.authURL,
-			TokenURL: a.tokenURL,
+			AuthURL:   a.authURL,
+			TokenURL:  a.tokenURL,
+			AuthStyle: oauth2.AuthStyleInHeader,
 		},
 		RedirectURL: a.redirectURI,
 		Scopes:      getOAuth2Scopes(),