Авторизация на портале с CSRF

$username = "xxx"; 
$password = "xxxx";
$url = "https://xxxxx"; 
$htmls = Invoke-WebRequest -Uri $url -SessionVariable SavedSession

$token = $htmls.InputFields | Where-Object {
    $_.name -like "csrfmiddlewaretoken" } | Select-Object Value

Write-host 'Token1:' $token.value


$Form = @{
    csrfmiddlewaretoken  = $token.value
    login   =  $username
    password   = $password
   }


$Headers = @{
    
    'Upgrade-Insecure-Requests'   =  '1'
    'DNT' = '1'
    'Content-Type'  = 'application/x-www-form-urlencoded'
    'User-Agent'   =  'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/84.0.4147.89 Safari/537.36'
    'Accept'   = 'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9'
    'Referer' = '$url'
   }

$html = Invoke-WebRequest -Uri $url  -WebSession $SavedSession   -Method Post -Headers $Headers -Body $Form 
$tokens = $html.InputFields | Where-Object {
    $_.name -like "csrfmiddlewaretoken" } | Select-Object Value
Write-host 'Token2:' $tokens.value

Не могу понять в чём ошибка. При попытке авторизации выдаёт: CSRF verification failed. Request aborted.