Webdriver UDF - attach session doesn't work on some PC

Kelv · Monday at 09:01 AM

Hello,

I'm using two scripts to control differents tabs in a edge session

The first one serves as a setup (launchs the Webdriver, opens the tabs, shuts down the webdriver)
The second one is called on a user action and is used to navigate to the correct tab in the edge session (launches the WD, attaches it to the session, navigates to and in the right tab)
Everything worked fined until recently, when, for some users, the second script doesn't succeed to attach the session.

The case doesn't happen to every body (i wasn't able to reproduce), but seems spreading.

It looks like an environment issue but i'm stuck on what issue it can be.

extract from the 1st script (works fine)

if $first Then
                    $_MY__WD_SESSION = SetupEdge(0,False)
                    $_MY__WD_SESSION = SetupEdge(0,True)
                    _WD_Navigate($_MY__WD_SESSION, $strArg)
                    $first=False
                Else
                    _WD_Attach($_MY__WD_SESSION,$strArg,"URL") 
                    If @error Then 
                        _WD_NewTab($_MY__WD_SESSION)                 
                        _WD_Navigate($_MY__WD_SESSION, $strArg)   
                    EndIf
                EndIf

where setupEdge is as follow

Func SetupEdge($bHeadless,$bTryAttach)
      _WD_UpdateDriver('msedge')
      If @error Then Return SetError(@error, @extended, '')

    _WD_Option('Driver', 'msedgedriver.exe')
    _WD_Option('Port', 9515) 
    _WD_Option('console', $strLog) 
    $_WD_CONSOLE = $strLog
    _WD_Option('DriverParams', ' --port=9515') 
;    
    _WD_CapabilitiesStartup()
    _WD_CapabilitiesAdd('firstMatch', 'msedge')
    _WD_CapabilitiesAdd('w3c', True)
    _WD_CapabilitiesAdd('detach', False)
    _WD_CapabilitiesAdd('binary', "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe")
    _WD_CapabilitiesAdd('args','user-data-dir=' & $DriverDir)
    _WD_CapabilitiesAdd('args','start-maximized')
; 
 If $bTryAttach Then
            _WD_CapabilitiesAdd('debuggerAddress', '127.0.0.1:9222')
    Else
            _WD_CapabilitiesAdd('args', '--remote-debugging-port=9222')
    EndIf
;
    Local $iWebDriverPID = _WD_Startup()
    If @error Then Return SetError(@error, @extended, '')
    Local $s_Capabilities = _WD_CapabilitiesGet()
    Local $WD_SESSION = _WD_CreateSession($s_Capabilities)
    If @error Then
        Msgbox(16,"Erreur", "Erreur création session")
        Exit
    EndIf
    Local $iBrowserPID = _WD_GetBrowserPID($iWebDriverPID, 'msedge')
    ConsoleWrite("! $iBrowserPID=" & $iBrowserPID & @CRLF)
    Return SetError(@error, @extended, $WD_SESSION)
;   
EndFunc   ;==>SetupEdge

and extract from the second script

_Testing_AttachSession()
    WriteLog("recherche session err - " & @error)
    If $relance Then
        _Testing_AttachSession()
    EndIf

with

; --------------------- fonction webdriver ---------------
; create webdriver session  
Func _Testing_CreateSession()
    $_MY__WD_SESSION = _MY__WD_SetupMsEdge(False, $__g_sDownloadDir, False)
EndFunc   ;==>_Testing_CreateSession

; link to existing session
Func _Testing_AttachSession()
    $_MY__WD_SESSION = _MY__WD_SetupMsEdge(False, $__g_sDownloadDir, True)
EndFunc   ;==>_Testing_AttachSession

; gestion msedge
Func _MY__WD_SetupMsEdge($b_Headless, $s_Download_dir = Default, $bTryAttach = False)

;    _WD_UpdateDriver('msedge')
;    If @error Then Return SetError(@error, @extended, '')

    _WD_Option('Driver', 'msedgedriver.exe')
    _WD_Option('Port', 9515)
    _WD_Option('DriverParams', ' --port=9515') 
    _WD_CapabilitiesStartup()
    _WD_CapabilitiesAdd('firstMatch', 'msedge')
    _WD_CapabilitiesAdd('w3c', True)
    _WD_CapabilitiesAdd('detach', False)
    _WD_CapabilitiesAdd('binary', "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe")
    _WD_CapabilitiesAdd('args','start-maximized')
    _WD_CapabilitiesAdd('args','user-data-dir=' & $LocalDir)
    If $bTryAttach Then
            _WD_CapabilitiesAdd('debuggerAddress', '127.0.0.1:9222')
    Else
            _WD_CapabilitiesAdd('args', '--remote-debugging-port=9222')
    EndIf
    If $b_Headless Then _
            _WD_CapabilitiesAdd('args', '--headless')
    If $s_Download_dir Then _
            _WD_CapabilitiesAdd('prefs', 'download.default_directory', $s_Download_dir)

    _WD_CapabilitiesDump(@ScriptLineNumber & ' :WebDriver:Capabilities:')
    Local $iWebDriverPID = _WD_Startup()
    If @error Then 
        WriteLog(@error & " " & @extended & " erreur wd_startup")
        Return SetError(@error, @extended, '')
    EndIf
    Local $s_Capabilities = _WD_CapabilitiesGet()
    Local $WD_SESSION = _WD_CreateSession($s_Capabilities)
; -- relance webdriver
     If @error Then 
        WriteLog(@error & " " & @extended & " erreur wd_Create")
        If $bTryAttach Then
            WriteLog("relance webdriver")
            _Testing_CreateSession() 
            _Testing_AttachSession()
            $Relance = True
        Else
            WriteLog("Erreur création session après couplage")
            Msgbox(16,"Erreur", "Erreur création session après couplage")
            Exit        
       EndIf
    EndIf

    Local $iBrowserPID = _WD_GetBrowserPID($iWebDriverPID, 'msedge')
    ConsoleWrite("! $iBrowserPID=" & $iBrowserPID & @CRLF)
    Return SetError(@error, @extended, $WD_SESSION)
EndFunc   ;==>_MY__WD_SetupMsEdge

logs from an error :

_WD_CapabilitiesStartup: #-1 : > {"capabilities":"{}"} > IsObj = 1
_WD_CapabilitiesAdd: #-1 :      $key = firstMatch     $value1 = msedge     $value2 = 
_WD_CapabilitiesAdd: #-1 :  $_WD_NOTATION__MATCHTYPE = [capabilities][firstMatch][0] $_WD_NOTATION__SPECIFICVENDOR = ["ms:edgeOptions"]
_WD_CapabilitiesAdd ==> Success [0] : Successfully used [firstMatch]  with specified browser: msedge
_WD_CapabilitiesAdd: #-1 :      $key = w3c     $value1 = True     $value2 = 
_WD_CapabilitiesAdd: #-1 #-1 :      $key = w3c     $value1 = True     $value2 =     $s_Notation = [capabilities][firstMatch][0]["ms:edgeOptions"]["w3c"]   <<<<  True
_WD_CapabilitiesAdd ==> Success [0] : Successfully added capability
_WD_CapabilitiesAdd: #-1 :      $key = detach     $value1 = False     $value2 = 
_WD_CapabilitiesAdd: #-1 #-1 :      $key = detach     $value1 = False     $value2 =     $s_Notation = [capabilities][firstMatch][0]["ms:edgeOptions"]   <<<<  False
_WD_CapabilitiesAdd ==> Success [0] : Successfully added capability
_WD_CapabilitiesAdd: #-1 :      $key = binary     $value1 = C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe     $value2 = 
_WD_CapabilitiesAdd: #-1 #-1 :      $key = binary     $value1 = C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe     $value2 =     $s_Notation = [capabilities][firstMatch][0]["ms:edgeOptions"]["binary"]   <<<<  C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
_WD_CapabilitiesAdd ==> Success [0] : Successfully added capability
_WD_CapabilitiesAdd: #-1 :      $key = args     $value1 = start-maximized     $value2 = 
_WD_CapabilitiesAdd: #-1 #-1 :      $key = args     $value1 = start-maximized     $value2 =     $s_Notation = [capabilities][firstMatch][0]["ms:edgeOptions"]["args"][0]   <<<<  start-maximized
_WD_CapabilitiesAdd ==> Success [0] : Successfully added capability
_WD_CapabilitiesAdd: #-1 :      $key = args     $value1 = user-data-dir=C:\Users\xxxxxx\AppData\Local\Microsoft\Edge\Driver Data     $value2 = 
_WD_CapabilitiesAdd: #-1 #-1 :      $key = args     $value1 = user-data-dir=C:\Users\xxxxxx\AppData\Local\Microsoft\Edge\Driver Data     $value2 =     $s_Notation = [capabilities][firstMatch][0]["ms:edgeOptions"]["args"][1]   <<<<  user-data-dir=C:\Users\xxxxxx\AppData\Local\Microsoft\Edge\Driver Data
_WD_CapabilitiesAdd ==> Success [0] : Successfully added capability
_WD_CapabilitiesAdd: #-1 :      $key = debuggerAddress     $value1 = 127.0.0.1:9222     $value2 = 
_WD_CapabilitiesAdd: #-1 #-1 :      $key = debuggerAddress     $value1 = 127.0.0.1:9222     $value2 =     $s_Notation = [capabilities][firstMatch][0]["ms:edgeOptions"]["debuggerAddress"]   <<<<  127.0.0.1:9222
_WD_CapabilitiesAdd ==> Success [0] : Successfully added capability
_WD_CapabilitiesDump: JSON structure starts below: -1 :WebDriver:Capabilities:
{
    "capabilities":{
        "firstMatch":[
            {
                "ms:edgeOptions":{
                    "binary":"C:\\Program Files (x86)\\Microsoft\\Edge\\Application\\msedge.exe",
                    "args":[
                        "start-maximized",
                        "user-data-dir=C:\\Users\\xxxxxx\\AppData\\Local\\Microsoft\\Edge\\Driver Data"
                    ],
                    "debuggerAddress":"127.0.0.1:9222"
                }
            }
        ]
    }
}
_WD_CapabilitiesDump: JSON structure ends above.
_WD_GetFreePort ==> Success [0 / 9515] : Parameters:   MinPort=9515   MaxPort=Default
_WD_IsLatestRelease ==> Success [0] : False
_WD_Startup: OS:    WIN_10 X64 19045 
_WD_Startup: AutoIt:    3.3.16.0
_WD_Startup: Webdriver UDF: 1.3.1 (Update available)
_WD_Startup: WinHTTP:   1.6.4.2
_WD_Startup: Driver:    msedgedriver.exe (32 Bit)
_WD_Startup: Params:     --port=9515
_WD_Startup: Port:  9515
_WD_Startup: Command:   "msedgedriver.exe"  --port=9515 
_WD_Startup ==> Success [0]
__WD_Post: URL=HTTP://127.0.0.1:9515/session; Data={
    "capabilities":{
        "firstMatch":[
            {
                "ms:edgeOptions":{
                    "binary":"C:\\Program Files (x86)\\Microsoft\\Edge\\Application\\msedge.exe",
                    "args":[
                        "start-maximized",
                        "user-data-dir=C:\\Users\\xxxxxx\\AppData\\Local\\Microsoft\\Edge\\Driver Data"
                    ],
                    "debuggerAddress":"127.0.0.1:9222"
                }
            }
        ]
    }
}
__WD_Post ==> Send / Recv error [6] : HTTP status = 0 ResponseText=WinHTTP request timed out before Webdriver
_WD_CreateSession ==> Webdriver Exception [10]

it has the same vibe as this post, but i'm online

Danp2 · Monday at 02:24 PM

As you stated, it's likely an environmental issue on the user's side. I see that you aren't running the latest version of the UDF, so you should probably address that. Does the issue occur with all browsers or only Edge?

Kelv · 2025-04-01T06:52:58Z

Hello,

thanks for your reply

I tried with an up to date version of the UDF, without any changes.

I didn't try with an other browser, i'll check if i can do that.

A thing i don't understand is why my first script work when the retry on the second one (if the _wd_CreateSession failed) does not.

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Webdriver UDF - attach session doesn't work on some PC

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