From 5a8e869a7ee0b7998bd5aa82d279a2717caa7270 Mon Sep 17 00:00:00 2001
From: tablatronix <807787+tablatronix@users.noreply.github.com>
Date: Mon, 18 Sep 2023 18:18:12 -0500
Subject: [PATCH] add workaround for #1543

@etoten thanks, slight change, Might have to add ipv6 detection instead and handle it that way
---
 WiFiManager.cpp | 10 ++++++++++
 WiFiManager.h   |  3 +++
 2 files changed, 13 insertions(+)

diff --git a/WiFiManager.cpp b/WiFiManager.cpp
index b5da15a..8ec7131 100644
--- a/WiFiManager.cpp
+++ b/WiFiManager.cpp
@@ -2416,6 +2416,16 @@ boolean WiFiManager::captivePortal() {
   if(!_enableCaptivePortal) return false; // skip redirections, @todo maybe allow redirection even when no cp ? might be useful
   
   String serverLoc =  toStringIp(server->client().localIP());
+
+  // fallback for ipv6 bug
+  if(serverloc = 0.0.0.0){
+    if ((WiFi.status()) != WL_CONNECTED)
+      serverLoc = toStringIp(WiFi.softAPIP());
+    else
+      serverLoc = toStringIp(WiFi.localIP());
+    }
+  }
+  
   if(_httpPort != 80) serverLoc += ":" + (String)_httpPort; // add port if not default
   bool doredirect = serverLoc != server->hostHeader(); // redirect if hostheader not server ip, prevent redirect loops
   
diff --git a/WiFiManager.h b/WiFiManager.h
index dbb0a74..ce0de12 100644
--- a/WiFiManager.h
+++ b/WiFiManager.h
@@ -618,6 +618,9 @@ class WiFiManager
     // but not limited to, we could run continuous background scans on various page hits, or xhr hits
     // which would be better coupled with asyncscan
     // atm preload is only done on root hit and startcp
+    // 
+    // preload scanning causes AP to delay showing for users, but also caches and lets the cp load faster once its open
+    //  my scan takes 7-10 seconds
     boolean       _preloadwifiscan        = true; // preload wifiscan if true
     unsigned int  _scancachetime          = 30000; // ms cache time for preload scans
     boolean       _asyncScan              = true; // perform wifi network scan async