René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Add support for multiple response headers with the same name from HttpListener","articleBody":"Multiple response header support was added in #4494 but the HttpListener concatenates multiple headers with the same name in Linux/macOS instead of returning multiple lines with the same header name.\r\n\r\n\r\nIn Windows:\r\n```\r\nHTTP/1.1 200 OK\r\nContent-Length: 2\r\nContent-Type: text/plain\r\nServer: Microsoft-HTTPAPI/2.0\r\nX-Fake-Header: testvalue01\r\nX-Fake-Header: testvalue02\r\nDate: Tue, 22 Aug 2017 09:49:37 GMT\r\n```\r\n\r\nIn Linux/macOS:\r\n```\r\nHTTP/1.1 200 OK\r\nX-Fake-Header: testvalue01, testvalue02\r\nServer: Microsoft-NetCore/2.0\r\nDate: Tue, 22 Aug 2017 09:18:18 GMT\r\nContent-Type: text/plain\r\nContent-Length: 2\r\n```\r\n\r\nThis results in a false failure of the `Verifies Invoke-WebRequest Supports Multiple response headers with same name` test on Linux/macOS.\r\n\r\nWe should find a cross-platform method of returning a multiple header response. (Possibly with the new listener inf #4622)","author":{"url":"https://github.com/markekraus","@type":"Person","name":"markekraus"},"datePublished":"2017-08-22T09:58:48.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":3},"url":"https://github.com/4639/PowerShell/issues/4639"}