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Invoke-WebRequest's .ToString() assumes content is ASCII #27154

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#27742
Open
Invoke-WebRequest's .ToString() assumes content is ASCII#27154
#27742
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Issue-BugIssue has been identified as a bug in the productIssue has been identified as a bug in the productUp-for-GrabsUp-for-grabs issues are not high priorities, and may be opportunities for external contributorsUp-for-grabs issues are not high priorities, and may be opportunities for external contributorsWG-Cmdletsgeneral cmdlet issuesgeneral cmdlet issuesWG-ReviewedA Working Group has reviewed this and made a recommendationA Working Group has reviewed this and made a recommendation

Description

@stuartio
stuartio
opened on Apr 2, 2026
Issue body actions

Prerequisites

Steps to reproduce

When you call .ToString() on a response from Invoke-WebRequest the code here assumes ascii in the content body

https://github.com/PowerShell/PowerShell/blob/45a80d9a4894802a61637cc7c8843bc66b0bcc5d/src/Microsoft.PowerShell.Commands.Utility/commands/utility/WebCmdlet/Common/WebResponseObject.Common.cs#L187C13-L187C69

If the content is non-ascii this causes characters to be converted to '???'

Expected behavior

Non-ascii characters in the response body remain unchanged

Actual behavior

Non-ascii characters become '???'

Error details



Environment data


Name                           Value
----                           -----
PSVersion                      7.6.0
PSEdition                      Core
GitCommitId                    7.6.0
OS                             Microsoft Windows 10.0.22631
Platform                       Win32NT
PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0…}
PSRemotingProtocolVersion      2.4
SerializationVersion           1.1.0.1
WSManStackVersion              3.0


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    Issue-BugIssue has been identified as a bug in the productIssue has been identified as a bug in the productUp-for-GrabsUp-for-grabs issues are not high priorities, and may be opportunities for external contributorsUp-for-grabs issues are not high priorities, and may be opportunities for external contributorsWG-Cmdletsgeneral cmdlet issuesgeneral cmdlet issuesWG-ReviewedA Working Group has reviewed this and made a recommendationA Working Group has reviewed this and made a recommendation
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