function Get-LastWebRequestErrorText {
<#
.SYNOPSIS
    Finds the last error in the errors stack that has a response stream and reads the value.
    Obviously this only works for open/current sessions, as this is an in memory variable that can be wiped at any time.

.PARAMETER All
    [switch] Finds all errors and writes them out serially from most recent to last
#>
    [CmdletBinding()]
    [OutputType([string])]
    param (
        [switch]$All
    )

    $logLead = (Get-LogLeadName)
    $allErrors = @($error)

    if (($allErrors.Count -eq 0) -or ($allErrors[0] -eq $null)) {
        Write-Host "$logLead : No errors found or first entry is null. This is unexpected. Can not continue."
        return $null
    }

    # Setup some place to track the values we found
    $foundStreams = @()

    # Ensure each error has been processed to see if it has a value that can be used
    foreach ($anyError in $allErrors) {
        if ($anyError.ResponseRecorded) {
            $foundStreams += $anyError.ResponseFoundStream
            continue
        }

        $response = $anyError.Exception.Response
        if ($null -ne $response) {
            # This only happens for things that have a response and that haven't been processed yet
            # That is to say, the cycle spin time here should be short
            $responseStream = $response.GetResponseStream()
            $foundStream = $null
            if ($null -ne $responseStream) {
                $foundStream = (Read-StreamAsString $responseStream)
                $foundStreams += $foundStream
            }
            $anyError | Add-Member -NotePropertyName "ResponseFoundStream" -NotePropertyValue $foundStream
            $anyError | Add-Member -NotePropertyName "ResponseRecorded" -NotePropertyValue $true
        }
    }

    if ($foundStreams.Count -eq 0) {
        Write-Warning "$logLead : Could not find any errors with response streams to parse."
        return $null
    }

    if (!$All) {
        return $foundStreams[0]
    } else {
        return $foundStreams
    }
}