Basic Infos

• This issue complies with the issue POLICY doc.
• I have read the documentation at readthedocs and the issue is not addressed there.
• I have tested that the issue is present in current master branch (aka latest git).
• I have searched the issue tracker for a similar issue.
• If there is a stack dump, I have decoded it.
• I have filled out all fields below.

Platform

• Hardware: ESP-01
• Core Version: 2 Aug 2020 (2.7.4)
• Development Env: Platformio
• Operating System: MacOS

Settings in IDE

• Module: Generic ESP8266 Module
• Flash Mode: qio
• Flash Size: 1MB
• lwip Variant: ?
• Reset Method: ?
• Flash Frequency: 40Mhz
• CPU Frequency: ?
• Upload Using: OTA
• Upload Speed: -

Problem Description

Steps to reproduce + Actual behaviour:
When user not select any file for FileSystem, and click update filesystem, server respond message that update is succesfull - not true.
Expected behaviour:
Server respond that update fails, because no file is sent!

MCVE Sketch

#include <Arduino.h> #include <ESP8266WiFi.h> #include <WiFiClient.h> #include <ESP8266WebServer.h> #include <ESP8266mDNS.h> #include <ESP8266HTTPUpdateServer.h> #ifndef STASSID #define STASSID "test" #define STAPSK "test" #endif const char* host = "test"; const char* ssid = STASSID; const char* password = STAPSK; ESP8266WebServer httpServer(80); ESP8266HTTPUpdateServer httpUpdater; void setup(void) { WiFi.mode(WIFI_AP_STA); WiFi.begin(ssid, password); while (WiFi.waitForConnectResult() != WL_CONNECTED) { WiFi.begin(ssid, password); } MDNS.begin(host); httpUpdater.setup(&httpServer); httpServer.begin(); MDNS.addService("http", "tcp", 80); } void loop(void) { httpServer.handleClient(); MDNS.update(); } 

Debug Messages