From e9c4d2360c9c58fde9530e09c53bac660280d2fc Mon Sep 17 00:00:00 2001
From: Rossen Georgiev <rossen@rgp.io>
Date: Sat, 10 Nov 2018 16:05:33 +0000
Subject: [PATCH] fix #154; validate_phone_number() returning no data

---
 steam/guard.py | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/steam/guard.py b/steam/guard.py
index cbcfbb0..5fe77f5 100644
--- a/steam/guard.py
+++ b/steam/guard.py
@@ -367,9 +367,13 @@ class SteamAuthenticator(object):
         sess = self._get_web_session()
 
         try:
-            resp = sess.get('https://store.steampowered.com//phone/validate',
-                            params={'phoneNumber': phone_number},
-                            timeout=15).json()
+            resp = sess.post('https://store.steampowered.com/phone/validate',
+                             data={
+                                'phoneNumber': phone_number,
+                                'sessionID': sess.cookies.get('sessionid', domain='store.steampowered.com'),
+                                },
+                             allow_redirects=False,
+                             timeout=15).json()
         except:
             resp = {}