Add the <link rel=\"icon\" href=\"data:,\"> line to the AP web config form to prevent favicon requests from the user's web browser.
// Display the HTML web page
client.println("<!DOCTYPE html><html>");
client.println("<head><meta name=\"viewport\" content=\"width=device-width, initial-scale=1\">");
client.println("<link rel=\"icon\" href=\"data:,\">");
Add the
<link rel=\"icon\" href=\"data:,\">
line to the AP web config form to prevent favicon requests from the user's web browser.Source: https://randomnerdtutorials.com/esp32-web-server-arduino-ide/