ESP32 [E][WebServer.cpp:617] _handleRequest(): request handler not found

[ionultd]

PROBLEM DESCRIPTION

A clear and concise description of what the problem is.

I get this error when booting but booting, otherwise all seems to work.
[E][WebServer.cpp:617] _handleRequest(): request handler not found

REQUESTED INFORMATION

Make sure your have performed every step and checked the applicable boxes before submitting your issue. Thank you!

• Read the Contributing Guide and Policy and the Code of Conduct
• Searched the problem in issues
• Searched the problem in the docs
• [] Searched the problem in the forum
• Searched the problem in the chat
• Device used (e.g., Sonoff Basic): ESP Wroom 32
• Tasmota binary firmware version number used: 8.4.0.1
  • Pre-compiled
  • Self-compiled
    • IDE / Compiler used: _____
• Flashing tools used: ESPTool.py
• Provide the output of command: Backlog Template; Module; GPIO 255:

  Configuration output here:
19:16:09 RSL: stat/tasmota_02A374/RESULT = {"NAME":"ESP32-DevKit","GPIO":[1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0,1,1,1,0,1,1,1,0,0,0,0,1,1,1,1,1,0,0,1],"FLAG":0,"BASE":1}
19:16:10 RSL: stat/tasmota_02A374/RESULT = {"Module":{"1":"ESP32-DevKit"}}
19:16:10 RSL: stat/tasmota_02A374/RESULT = {"GPIO0":{"0":"None"},"GPIO1":{"0":"None"},"GPIO2":{"0":"None"},"GPIO3":{"0":"None"},"GPIO4":{"0":"None"},"GPIO5":{"0":"None"},"GPIO12":{"0":"None"},"GPIO13":{"0":"None"},"GPIO14":{"0":"None"},"GPIO15":{"0":"None"},"GPIO16":{"0":"None"},"GPIO17":{"0":"None"},"GPIO18":{"0":"None"},"GPIO19":{"0":"None"},"GPIO21":{"0":"None"},"GPIO22":{"0":"None"},"GPIO23":{"0":"None"},"GPIO25":{"0":"None"},"GPIO26":{"0":"None"},"GPIO27":{"0":"None"},"GPIO32":{"0":"None"},"GPIO33":{"0":"None"},"GPIO34":{"0":"None"},"GPIO35":{"0":"None"},"GPIO36":{"0":"None"},"GPIO39":{"0":"None"}}

• If using rules, provide the output of this command: Backlog Rule1; Rule2; Rule3:

  Rules output here:

• Provide the output of this command: Status 0:

  STATUS 0 output here:

19:17:51 RSL: stat/tasmota_02A374/STATUS = {"Status":{"Module":1,"DeviceName":"Tasmota","FriendlyName":["Tasmota"],"Topic":"tasmota_02A374","ButtonTopic":"0","Power":0,"PowerOnState":3,"LedState":1,"LedMask":"FFFF","SaveData":1,"SaveState":1,"SwitchTopic":"0","SwitchMode":[0,0,0,0,0,0,0,0],"ButtonRetain":0,"SwitchRetain":0,"SensorRetain":0,"PowerRetain":0}}
19:17:51 RSL: stat/tasmota_02A374/STATUS1 = {"StatusPRM":{"Baudrate":115200,"SerialConfig":"8N1","GroupTopic":"tasmotas","OtaUrl":"http://thehackbox.org/tasmota/release/tasmota.bin","RestartReason":"Software reset CPU","Uptime":"0T00:16:22","StartupUTC":"2020-08-13T18:01:29","Sleep":50,"CfgHolder":4617,"BootCount":8,"BCResetTime":"2020-08-13T19:01:38","SaveCount":13}}
19:17:51 RSL: stat/tasmota_02A374/STATUS2 = {"StatusFWR":{"Version":"8.4.0.1(sensors)","BuildDateTime":"2020-08-12T17:09:02","Core":"1_0_4","SDK":"v3.2.3-14-gd3e562907","CpuFrequency":80,"Hardware":"ESP32","CR":"357/699"}}
19:17:51 RSL: stat/tasmota_02A374/STATUS3 = {"StatusLOG":{"SerialLog":2,"WebLog":2,"MqttLog":0,"SysLog":0,"LogHost":"","LogPort":514,"SSId":["WIFI",""],"TelePeriod":300,"Resolution":"558180C0","SetOption":["00008009","2805C8000100060000005A00000000000000","00000000","00006000"]}}
19:17:51 RSL: stat/tasmota_02A374/STATUS4 = {"StatusMEM":{"ProgramSize":1118,"Free":1984,"Heap":111,"PsrMax":0,"PsrFree":0,"ProgramFlashSize":4096,"FlashSize":4096,"FlashFrequency":40,"FlashMode":3,"Features":["00000809","8FDA8787","00152005","B7FFBFCF","01DA9BC4","60360CC7","00084052"],"Drivers":"1,2,3,4,5,7,8,9,10,12,14,17,20,21,24,29,34","Sensors":"1,2,3,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,26,28,31,34,37,39,40,42,43,51,52,55,56,58,59,64,66,67,74"}}
19:17:51 RSL: stat/tasmota_02A374/STATUS5 = {"StatusNET":{"Hostname":"tasmota_02A374-0884","IPAddress":"10.10.0.45","Gateway":"10.10.0.1","Subnetmask":"255.255.255.0","DNSServer":"10.10.0.1","Mac":"30:AE:A4:05:A3:74","Webserver":2,"WifiConfig":4,"WifiPower":17.0}}
19:17:51 RSL: stat/tasmota_02A374/STATUS6 = {"StatusMQT":{"MqttHost":"","MqttPort":1883,"MqttClientMask":"DVES_%06X","MqttClient":"DVES_02A374","MqttUser":"DVES_USER","MqttCount":0,"MAX_PACKET_SIZE":1200,"KEEPALIVE":30}}
19:17:51 RSL: stat/tasmota_02A374/STATUS7 = {"StatusTIM":{"UTC":"2020-08-13T18:17:51","Local":"2020-08-13T19:17:51","StartDST":"2020-03-29T02:00:00","EndDST":"2020-10-25T03:00:00","Timezone":"+01:00","Sunrise":"05:41","Sunset":"20:08"}}
19:17:51 RSL: stat/tasmota_02A374/STATUS10 = {"StatusSNS":{"Time":"2020-08-13T19:17:51"}}
19:17:51 RSL: stat/tasmota_02A374/STATUS11 = {"StatusSTS":{"Time":"2020-08-13T19:17:51","Uptime":"0T00:16:22","UptimeSec":982,"Heap":111,"SleepMode":"Dynamic","Sleep":50,"LoadAvg":19,"MqttCount":0,"Wifi":{"AP":1,"SSId":"WIFI","BSSId":"A0:63:91:23:52:AF","Channel":13,"RSSI":100,"Signal":-19,"LinkCount":1,"Downtime":"0T00:00:06"}}}

• Provide the output of the Console log output when you experience your issue; if applicable:
  (Please use weblog 4 for more debug information)

  Termite console output here:

rst:0xc (SW_CPU_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DOUT, clock div:2
load:0x3fff0018,len:4
load:0x3fff001c,len:1044
load:0x40078000,len:8896
load:0x40080400,len:5828
entry 0x400806ac
00:00:00 CFG: Loaded, Count 10
00:00:00 Project tasmota Tasmota Version 8.4.0.1(sensors)-1_0_4
00:00:00 WIF: Connecting to AP1 WIFI in mode 11  as tasmota_02A374-0884...
00:00:05 WIF: Connected
00:00:05 HTP: Web server active on tasmota_02A374-0884 with IP address 10.10.0.43
00:00:06 RSL: tele/tasmota_02A374/INFO1 = {"Module":"ESP32-DevKit","Version":"8.4.0.1(sensors)","FallbackTopic":"cmnd/DVES_02A374_fb/","GroupTopic":"cmnd/tasmotas/"}
00:00:06 RSL: tele/tasmota_02A374/INFO2 = {"WebServerMode":"Admin","Hostname":"tasmota_02A374-0884","IPAddress":"10.10.0.43"}
00:00:06 RSL: tele/tasmota_02A374/INFO3 = {"RestartReason":"Software reset CPU"}
19:01:42 RSL: tele/tasmota_02A374/STATE = {"Time":"2020-08-13T19:01:42","Uptime":"0T00:00:13","UptimeSec":13,"Heap":111,"SleepMode":"Dynamic","Sleep":50,"LoadAvg":192,"MqttCount":0,"Wifi":{"AP":1,"SSId":"WIFI","BSSId":"A0:63:91:23:52:AF","Channel":13,"RSSI":100,"Signal":-40,"LinkCount":1,"Downtime":"0T00:00:06"}}
**[E][WebServer.cpp:617] _handleRequest(): request handler not found**
19:06:41 RSL: tele/tasmota_02A374/STATE = {"Time":"2020-08-13T19:06:41","Uptime":"0T00:05:12","UptimeSec":312,"Heap":111,"SleepMode":"Dynamic","Sleep":50,"LoadAvg":19,"MqttCount":0,"Wifi":{"AP":1,"SSId":"WIFI","BSSId":"A0:63:91:23:52:AF","Channel":13,"RSSI":100,"Signal":-36,"LinkCount":1,"Downtime":"0T00:00:06"}}
19:11:29 APP: Serial logging disabled

TO REPRODUCE

Steps to reproduce the behavior:
Upload latest firmware tasmpota32-sensors.bin Tasmota Version 8.4.0.1(sensors)-1_0_4 then check boot messages

EXPECTED BEHAVIOUR

A clear and concise description of what you expected to happen.

Boot without any errors

SCREENSHOTS

If applicable, add screenshots to help explain your problem.

ADDITIONAL CONTEXT

Add any other context about the problem here.

(Please, remember to close the issue when the problem has been addressed)

[arendst]

The error is caused by (mis)handling of not found links like in the below case favicon.ico:

Tasmota does not provide a favicon.ico as it is overhead we won't need.

For some reason the ESP32 core webserver (that tasmota builds upon) errors out instead of handling it as a not found link.

I need to investigate how to handle this as the ESP8266 core webserver (again, that tasmota builds upon) seems to handle it well.

BTW: Core error messages can be disabled by a compile option (yet to be found)

[arendst]

The latest commit disables all ESP32 core debug messages like the ESP8266 does.

[ionultd]

Thanks again for your awesome work!