       "function writeRfid(url){ var xhr = new XMLHttpRequest(); xhr.onreadystatechange = function() { if (xhr.readyState === 4) { location.reload(); }}; xhr.open('POST', url); var formData = new FormData(); formData.append('write', 1); xhr.send(formData);}"
       "function mkdir() { var folder = document.getElementById('folder'); if(folder != ''){ var xhr = new XMLHttpRequest(); xhr.onreadystatechange = function() { if (xhr.readyState === 4) { location.reload(); }}; xhr.open('POST', '/'); var formData = new FormData(); formData.append('folder', folder.value); xhr.send(formData);}}"
       "function ota() { var xhr = new XMLHttpRequest(); xhr.onreadystatechange = function() { if (xhr.readyState === 4) { document.write('Please wait and do NOT turn of the power!'); location.reload(); }}; xhr.open('POST', '/'); var formData = new FormData(); formData.append('ota', 1); xhr.send(formData);}"
-      "</script></head><body>"));
+      "</script><link rel=\"icon\" href=\"data:;base64,iVBORw0KGgo=\"></head><body>"));
 
   String output;
   if (path == "/") {

      lastCardUid[i] = mfrc522.uid.uidByte[i];
    }

    if (switchFolder(readFolder)) {
      stopMp3();
      yield();
      playMp3();
    }
  }


    return;
  } else if (server.method() == HTTP_POST) {
    if (server.hasArg("folder")) {
      Serial.print(F("Creating folder"));
      Serial.print(F(" "));
      Serial.println(server.arg("folder"));
      SD.mkdir((char *)server.arg("folder").c_str());
      returnOK();
      return;
