v1.2.0

### Releases v1.2.0

1. Restore cpp code besides Impl.h code to use in case of `multiple definition` linker error. See [`Change Implementation to seperate *.h and *.cpp file instead of *.h and *-Impl.h`](#38) and [`Support building in PlatformIO PR`](#20). SSee [**HOWTO Fix `Multiple Definitions` Linker Error**](https://github.com/khoih-prog/ESP_WiFiManager#HOWTO-Fix-Multiple-Definitions-Linker-Error)
2. Fix bug [/close does not close the config portal](khoih-prog/ESPAsync_WiFiManager#16).

Author: khoih-prog

README.md

@@ -38,6 +38,11 @@ Thanks to [cancodr](https://github.com/cancodr) for requesting an enhancement in
 ---
 ---
 
+### Releases v1.2.0
+
+1. Restore cpp code besides Impl.h code to use in case of `multiple definition` linker error. See [`Change Implementation to seperate *.h and *.cpp file instead of *.h and *-Impl.h`](https://github.com/khoih-prog/ESP_WiFiManager/issues/38) and [`Support building in PlatformIO PR`](https://github.com/khoih-prog/ESP_WiFiManager/pull/20). SSee [**HOWTO Fix `Multiple Definitions` Linker Error**](https://github.com/khoih-prog/ESP_WiFiManager#HOWTO-Fix-Multiple-Definitions-Linker-Error)
+2. Fix bug [/close does not close the config portal](https://github.com/khoih-prog/ESPAsync_WiFiManager/issues/16).
+
 ### Releases v1.1.2
 
 1. Fix bug in examples.
@@ -147,6 +152,25 @@ The best and easiest way is to use `Arduino Library Manager`. Search for `ESP_Wi
 ---
 ---
 
+### HOWTO Fix `Multiple Definitions` Linker Error
+
+The current library implementation, using xyz-Impl.h instead of standard xyz.cpp, possibly creates certain `Multiple Definitions` Linker error in certain use cases. Although it's simple to just modify several lines of code, either in the library or in the application, the library is adding a separate source directory, named src_cpp, besides the standard src directory.
+
+To use the old standard cpp way, locate this library' directory, then just 
+
+1. **Delete the all the files in src directory.**
+2. **Copy all the files in src_cpp directory into src.**
+3. Close then reopen the application code in Arduino IDE, etc. to recompile from scratch.
+
+To re-use the new h-only way, just 
+
+1. **Delete the all the files in src directory.**
+2. **Copy the files in src_h directory into src.**
+3. Close then reopen the application code in Arduino IDE, etc. to recompile from scratch.
+
+---
+---
+
 ## How It Works
 
 - The [ConfigOnSwitch](examples/ConfigOnSwitch) example shows how it works and should be used as the basis for a sketch that uses this library.
@@ -2321,6 +2345,11 @@ Submit issues to: [ESP_WiFiManager issues](https://github.com/khoih-prog/ESP_WiF
 ---
 ---
 
+### Releases v1.2.0
+
+1. Restore cpp code besides Impl.h code to use in case of `multiple definition` linker error. See [`Change Implementation to seperate *.h and *.cpp file instead of *.h and *-Impl.h`](https://github.com/khoih-prog/ESP_WiFiManager/issues/38) and [`Support building in PlatformIO PR`](https://github.com/khoih-prog/ESP_WiFiManager/pull/20)
+2. Fix bug [/close does not close the config portal](https://github.com/khoih-prog/ESPAsync_WiFiManager/issues/16).
+
 ### Releases v1.1.2
 
 1. Fix bug in examples.
@@ -2432,7 +2461,7 @@ See [KenTaylor's version](https://github.com/kentaylor/WiFiManager) for previous
   - [Issue #25: API call /r doesnt clear credentials](https://github.com/khoih-prog/ESP_WiFiManager/issues/25), [Issue #26: softAP with custom IP not working](https://github.com/khoih-prog/ESP_WiFiManager/issues/26) and [Issue #27: CORS protection fires up with AJAX](https://github.com/khoih-prog/ESP_WiFiManager/issues/27) leading to [ESP_WiFiManager v1.0.11](https://github.com/khoih-prog/ESP_WiFiManager/releases/tag/v1.0.11).
 7. Thanks to [Marko](https://github.com/wackoo-arduino) for agreeing to contribute the sample code dealing with MQTT which the  [ConfigOnSwitchFS_MQTT_Ptr](examples/ConfigOnSwitchFS_MQTT_Ptr) is based on. See [Custom MQTT parameters using Wifi Manager](https://forum.arduino.cc/index.php?topic=692108.75).
 8. Thanks to [05prateek](https://github.com/05prateek) for reporting [Stationmode Static IP changes to dhcp when esp8266 is restarted](https://github.com/khoih-prog/ESP_WiFiManager/issues/28) bug which is fixed in v1.0.11 by enhance autoConnect() function.
-
+9. Thanks to [Egor](https://github.com/eg321) and [HenrikW](https://github.com/Invento3D) to make [`Support building in PlatformIO PR`](https://github.com/khoih-prog/ESP_WiFiManager/pull/20) and post issue [`Change Implementation to seperate *.h and *.cpp file instead of *.h and *-Impl.h`](https://github.com/khoih-prog/ESP_WiFiManager/issues/38) to address the `multiple definition` linker error in certain cases, leading to v1.2.0
 
 
 <table>
@@ -2448,6 +2477,8 @@ See [KenTaylor's version](https://github.com/kentaylor/WiFiManager) for previous
     <td align="center"><a href="https://github.com/AlesSt"><img src="https://github.com/AlesSt.png" width="100px;" alt="AlesSt"/><br /><sub><b>⭐️ AlesSt</b></sub></a><br /></td>
     <td align="center"><a href="https://github.com/wackoo-arduino"><img src="https://github.com/wackoo-arduino.png" width="100px;" alt="wackoo-arduino"/><br /><sub><b>Marko</b></sub></a><br /></td>
     <td align="center"><a href="https://github.com/05prateek"><img src="https://github.com/05prateek.png" width="100px;" alt="05prateek"/><br /><sub><b>05prateek</b></sub></a><br /></td>
+    <td align="center"><a href="https://github.com/eg321"><img src="https://github.com/eg321.png" width="100px;" alt="eg321"/><br /><sub><b>Egor</b></sub></a><br /></td>
+    <td align="center"><a href="https://github.com/Invento3D"><img src="https://github.com/Invento3D.png" width="100px;" alt="Invento3D"/><br /><sub><b>HenrikW</b></sub></a><br /></td>
   </tr> 
 </table>
 

examples/AutoConnect/AutoConnect.ino

@@ -10,6 +10,8 @@
   
   Built by Khoi Hoang https://github.com/khoih-prog/ESP_WiFiManager
   Licensed under MIT license
+  Version: 1.2.0
+
   Version Modified By   Date      Comments
   ------- -----------  ---------- -----------
   1.0.0   K Hoang      07/10/2019 Initial coding
@@ -28,6 +30,7 @@
   1.1.0   K Hoang      28/08/2020 Add MultiWiFi feature to autoconnect to best WiFi at runtime
   1.1.1   K Hoang      30/08/2020 Add setCORSHeader function to allow flexible CORS. Fix typo and minor improvement.
   1.1.2   K Hoang      17/08/2020 Fix bug. Add example.
+  1.2.0   K Hoang      09/10/2020 Restore cpp code besides Impl.h code to use if linker error. Fix bug.
  *****************************************************************************************************************************/
 #if !( defined(ESP8266) ||  defined(ESP32) )
   #error This code is intended to run on the ESP8266 or ESP32 platform! Please check your Tools->Board setting.

examples/AutoConnectWithFSParameters/AutoConnectWithFSParameters.ino

@@ -10,6 +10,8 @@
   
   Built by Khoi Hoang https://github.com/khoih-prog/ESP_WiFiManager
   Licensed under MIT license
+  Version: 1.2.0
+
   Version Modified By   Date      Comments
   ------- -----------  ---------- -----------
   1.0.0   K Hoang      07/10/2019 Initial coding
@@ -28,6 +30,7 @@
   1.1.0   K Hoang      28/08/2020 Add MultiWiFi feature to autoconnect to best WiFi at runtime
   1.1.1   K Hoang      30/08/2020 Add setCORSHeader function to allow flexible CORS. Fix typo and minor improvement.
   1.1.2   K Hoang      17/08/2020 Fix bug. Add example.
+  1.2.0   K Hoang      09/10/2020 Restore cpp code besides Impl.h code to use if linker error. Fix bug.
  *****************************************************************************************************************************/
 #if !( defined(ESP8266) ||  defined(ESP32) )
   #error This code is intended to run on the ESP8266 or ESP32 platform! Please check your Tools->Board setting.

examples/AutoConnectWithFeedback/AutoConnectWithFeedback.ino

@@ -10,6 +10,8 @@
   
   Built by Khoi Hoang https://github.com/khoih-prog/ESP_WiFiManager
   Licensed under MIT license
+  Version: 1.2.0
+
   Version Modified By   Date      Comments
   ------- -----------  ---------- -----------
   1.0.0   K Hoang      07/10/2019 Initial coding
@@ -28,6 +30,7 @@
   1.1.0   K Hoang      28/08/2020 Add MultiWiFi feature to autoconnect to best WiFi at runtime
   1.1.1   K Hoang      30/08/2020 Add setCORSHeader function to allow flexible CORS. Fix typo and minor improvement.
   1.1.2   K Hoang      17/08/2020 Fix bug. Add example.
+  1.2.0   K Hoang      09/10/2020 Restore cpp code besides Impl.h code to use if linker error. Fix bug.
  *****************************************************************************************************************************/
 #if !( defined(ESP8266) ||  defined(ESP32) )
   #error This code is intended to run on the ESP8266 or ESP32 platform! Please check your Tools->Board setting.

examples/AutoConnectWithFeedbackLED/AutoConnectWithFeedbackLED.ino

@@ -10,6 +10,8 @@
   
   Built by Khoi Hoang https://github.com/khoih-prog/ESP_WiFiManager
   Licensed under MIT license
+  Version: 1.2.0
+
   Version Modified By   Date      Comments
   ------- -----------  ---------- -----------
   1.0.0   K Hoang      07/10/2019 Initial coding
@@ -28,6 +30,7 @@
   1.1.0   K Hoang      28/08/2020 Add MultiWiFi feature to autoconnect to best WiFi at runtime
   1.1.1   K Hoang      30/08/2020 Add setCORSHeader function to allow flexible CORS. Fix typo and minor improvement.
   1.1.2   K Hoang      17/08/2020 Fix bug. Add example.
+  1.2.0   K Hoang      09/10/2020 Restore cpp code besides Impl.h code to use if linker error. Fix bug.
  *****************************************************************************************************************************/
 #if !( defined(ESP8266) ||  defined(ESP32) )
   #error This code is intended to run on the ESP8266 or ESP32 platform! Please check your Tools->Board setting.

examples/ConfigOnDRD_FS_MQTT_Ptr/ConfigOnDRD_FS_MQTT_Ptr.ino

@@ -13,7 +13,7 @@
   
   Built by Khoi Hoang https://github.com/khoih-prog/ESP_WiFiManager
   Licensed under MIT license
-  Version: 1.1.2
+  Version: 1.2.0
 
   Version Modified By   Date      Comments
   ------- -----------  ---------- -----------
@@ -33,6 +33,7 @@
   1.1.0   K Hoang      28/08/2020 Add MultiWiFi feature to autoconnect to best WiFi at runtime
   1.1.1   K Hoang      30/08/2020 Add setCORSHeader function to allow flexible CORS. Fix typo and minor improvement.
   1.1.2   K Hoang      17/08/2020 Fix bug. Add example.
+  1.2.0   K Hoang      09/10/2020 Restore cpp code besides Impl.h code to use if linker error. Fix bug.
  *****************************************************************************************************************************/
 /****************************************************************************************************************************
   This example will open a Config Portal when there is no stored WiFi Credentials or when a DRD is detected.