Hello Emygma,
I have the same problem. I sometimes have in response from the server a blank white page and I think this is the reason.
I am sending to the client a very long HTML page (51KBytes) and I in addition I steam images from SPIFFS with the code below.

if (SPIFFS.exists(path)){
File ...

Hello,
with normal web server of Arduino core there is this line in https://github.com/espressif/arduino-esp32/blob/master/libraries/WebServer/src/WebServer.h

virtual WiFiClient client() { return _currentClient; }

So in order to see if a client is connect you can write

void checkClient ...

Thank you for this post. I needed to update SPIFFS from OTA and I managed to do it thanks to you.

You may find the code for Arduino IDE below. I took most of code form this post to make it.

https://github.com/pedros89/ESP32-OTA-u ... th-Arduino

For me it works great. Bye!

Hello, you may find a repository to do OTA update spiffs with code for Arduino IDE here:

https://github.com/pedros89/ESP32-OTA-u ... th-Arduino