diff --git a/pio_ci_ex_ALL.bat b/pio_ci_ex_ALL.bat
new file mode 100644
index 00000000..9da08235
--- /dev/null
+++ b/pio_ci_ex_ALL.bat
@@ -0,0 +1,19 @@
+@echo off
+rem Build all listed examples of this library on PIO CLI; may take some time
+rem Verifies that library and all examples still compile
+
+setlocal EnableDelayedExpansion enableextensions
+set CI_DIR=%~dp0\..\async-esp-fs-webserver.pio-ci
+set EXAMPLES=simpleServerCaptive simpleServer withWebSocket customHTML customOptions gpio_list handleFormData highcharts remoteOTA esp32-cam
+::set EXAMPLES=simpleServerCaptive
+:: simpleServer withWebSocket customHTML
+FOR  %%E IN (%EXAMPLES%) DO IF NOT EXIST %CI_DIR%\ci_ex_%%E MKDIR %CI_DIR%\ci_ex_%%E
+@echo on
+FOR  %%E IN (%EXAMPLES%) DO (
+ pio ci  -c platformio.ini --board=esp32dev --keep-build-dir --build-dir=%CI_DIR%\ci_ex_%%E --lib=. .\examples\%%E\*.* > %CI_DIR%\ci_ex_%%E\build.out.txt 2>%CI_DIR%\ci_ex_%%E\build.err.txt
+ @for /f %%i in ("%CI_DIR%\ci_ex_%%E\build.err.txt") do @set size=%%~zi && @echo ###ERROR in %%i && @type %%i
+ )
+@echo off
+:: type %CI_DIR%/ci_ex_%%E/build.err.txt
+:: note activation pio verbose option '-v' outputs a lot of text (~25k/compile, ~2MB/pio-ci)
+rem pio ci  -c platformio.ini --board=esp32dev --build-dir=../ci_ex_simpleServer --keep-build-dir --lib=. .\examples\simpleServer\simpleServer.ino
diff --git a/platformio.ini b/platformio.ini
new file mode 100644
index 00000000..039d795a
--- /dev/null
+++ b/platformio.ini
@@ -0,0 +1,23 @@
+; PlatformIO Project Configuration File
+;
+;   Build options: build flags, source filter
+;   Upload options: custom upload port, speed and extra flags
+;   Library options: dependencies, extra library storages
+;   Advanced options: extra scripting
+;
+; Please visit documentation for the other options and examples
+; https://docs.platformio.org/page/projectconf.html
+
+[env:esp32dev]
+platform = espressif32
+board = esp32dev
+framework = arduino
+lib_deps = bblanchon/ArduinoJson@^6.21.4
+  DNSServer@^2.0.0
+  ESPmDNS@^2.0.0
+  WiFi@^2.0.0
+  FS@^2.0.0
+  LittleFS@^2.0.0
+  Update@^2.0.0
+
+
diff --git a/src/AsyncFsWebServer.cpp b/src/AsyncFsWebServer.cpp
index caf13726..298010be 100644
--- a/src/AsyncFsWebServer.cpp
+++ b/src/AsyncFsWebServer.cpp
@@ -69,7 +69,7 @@ bool AsyncFsWebServer::init(AwsEventHandler wsHandle) {
     begin();
 
     // Configure and start MDNS responder
-    if (!MDNS.begin(m_host)){
+    if (!MDNS.begin(m_host.c_str())){
         log_error("MDNS responder started");
     }
     MDNS.addService("http", "tcp", m_port);
@@ -122,7 +122,7 @@ void AsyncFsWebServer::enableFsCodeEditor() {
   }
 
 bool AsyncFsWebServer::startCaptivePortal(const char* ssid, const char* pass, const char* redirectTargetURL) {
-    
+
     if (! WiFi.softAP(ssid, pass)) {
         log_error("Captive portal failed to start: WiFi.softAP failed!");
         return false;
@@ -454,7 +454,6 @@ void AsyncFsWebServer::handleUpload(AsyncWebServerRequest *request, String filen
 
     if (len) {
         // stream the incoming chunk to the opened file
-        static int i = 0;
         request->_tempFile.write(data, len);
     }
 
@@ -545,12 +544,12 @@ void AsyncFsWebServer::doWifiConnection(AsyncWebServerRequest *request) {
         WiFi.mode(WIFI_AP_STA);
 
         // Manual connection setup
-        if (config) {            
+        if (config) {
             log_info("Manual config WiFi connection with IP: %s", local_ip.toString().c_str());
-            if (!WiFi.config(local_ip, gateway, subnet))           
+            if (!WiFi.config(local_ip, gateway, subnet))
                 log_error("STA Failed to configure");
         }
-        
+
         Serial.printf("\n\n\nConnecting to %s\n", ssid.c_str());
         WiFi.begin(ssid.c_str(), pass.c_str());
         delay(500);
@@ -693,7 +692,7 @@ IPAddress AsyncFsWebServer::startWiFi(uint32_t timeout, CallbackF fn ) {
             subnet.fromString(doc["subnet"].as<String>());
             local_ip.fromString(doc["ip_address"].as<String>());
             log_info("Manual config WiFi connection with IP: %s\n", local_ip.toString().c_str());
-            if (!WiFi.config(local_ip, gateway, subnet))           
+            if (!WiFi.config(local_ip, gateway, subnet))
                 log_error("STA Failed to configure");
             delay(100);
         }
@@ -745,8 +744,8 @@ IPAddress AsyncFsWebServer::startWiFi(uint32_t timeout, CallbackF fn ) {
 }
 
 IPAddress AsyncFsWebServer::startWiFi(uint32_t timeout, const char *apSSID, const char *apPsw, CallbackF fn) {
-    IPAddress ip (0, 0, 0, 0);  
-    ip = startWiFi(timeout, fn);    
+    IPAddress ip (0, 0, 0, 0);
+    ip = startWiFi(timeout, fn);
     if (!ip) {
         // No connection, start AP and then captive portal
         startCaptivePortal("ESP_AP", "123456789", "/setup");