login into a web page using powershell - powershell

Question

I need to log on to a web page with credentials from the get-credential window. But I am getting error- Property 'Value' cannot be found on this object; make sure it exists and is settable.I have provided my powershell source code here..
$url = "ameriprisestage.service-now.com/"
$cred = Get-Credential
$username = $cred.username
$username = $username.Replace("\", "")
$password = $cred.GetNetworkCredential().password
$ie = New-Object -com internetexplorer.application;
$ie.visible = $true;
$ie.navigate($url);
while ($ie.ReadyState -ne 4 -or $ie.Busy)
{
start-sleep -milliseconds 100
}
#$uname=$ie.Document.getElementsByTagName("input")
#$unameBox=$uname | where { $_.name -eq "user_name" }
$unameBox=$ie.Document.getElementById("user_name")
$unameBox.value = $username
$pass=$ie.Document.getElementsByTagName("input") | ? { $_.id -eq "user_password" }
$pass.value = $password
$pass.select
$buttn=$ie.Document.getElementsByTagName("button") | ? { $_.id -eq "sysverb_login" }
$buttn.click()
while($ie.busy) {
Start-sleep 1;
}

Answer 1

There are multiple windows in the web page. Try to redirect it to the relevant window.
cd HKCU:\"Software\Microsoft\Windows\CurrentVersion\Internet Settings"
set-itemproperty . ProxyEnable 1
$url = "https://ameriprisestage.service-now.com/"
#function call
#$cred = Get-Credential
$username = "asset_tester02"
$username = "asset_tester02"
$password = "tester02"
$ie = New-Object -com internetexplorer.application;
$ie.visible = $true;
$ie.navigate($url);
while ($ie.Busy -eq $true)
{
Start-Sleep 1;
}
$usr=$ie.document.getElementbyID("gsft_main").contentWindow.document.getElementbyID("user_name").value=$username
$pass=$ie.document.getElementbyID("gsft_main").contentWindow.document.getElementById("user_password").value= $password
$buttn=$ie.document.getElementbyID("gsft_main").contentWindow.document.getElementById("sysverb_login").click()