René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"-ErrorAction Ignore doesn't work for calling advanced functions","articleBody":"1. Create a script with the following code:\r\n\r\n```powershell\r\nfunction foo\r\n{\r\n    [CmdletBinding()]\r\n    param()\r\n\r\nprocess\r\n{\r\n    try\r\n    {\r\n        Write-Error 'boo'\r\n    }\r\n    finally { }\r\n}\r\n\r\n}\r\n\r\nfunction bar\r\n{\r\n    foo -ErrorAction Ignore\r\n}\r\n```\r\n\r\n1. Dot-source that script to import the function definitions.\r\n2. Call the \"bar\" function.\r\n\r\nExpected result:\r\n    Nothing (no output; no error--bar is calling foo with \"-ErrorAction Ignore\").\r\n\r\nActual result:\r\n    I get an error, and it's not even the one written by foo:\r\n\r\n```\r\nWrite-Error : The value Ignore is not supported for an ActionPreference variable. The provided value should be used only as a value for a preference\r\nparameter, and has been replaced by the default value. For more information, see the Help topic, \"about_Preference_Variables.\"\r\nAt E:\\temp\\ps_ea_ignore_2.ps1:11 char:13\r\n-             Write-Error 'boo'\r\n-             ~~~~~~~~~~~~~~~~~\r\n  - CategoryInfo          : NotSpecified: (:) [Write-Error], NotSupportedException\r\n  - FullyQualifiedErrorId : System.NotSupportedException,Microsoft.PowerShell.Commands.WriteErrorCommand\r\n```\r\n\r\nDan Thompson:\r\nIn addition to being annoying for straight-up calling advanced functions (you can't use \"-ErrorAction Ignore\" with them), this also hampers meta-programming (you can't do \"\u0026 $someCmd -ErrorAction Ignore\", because you might not know if $someCmd is an advanced function or not).\r\n","author":{"url":"https://github.com/SteveL-MSFT","@type":"Person","name":"SteveL-MSFT"},"datePublished":"2016-08-12T19:44:11.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":17},"url":"https://github.com/1759/PowerShell/issues/1759"}