Avoid closing connections when HEAD requests have a content length
#428
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3.0.0 (2024-02-04) ------------------ - Rename "master" git branch to "main" - Fix a bug that would appear on macOS whereby if we accept() a socket that is already gone, setting socket options would fail and take down the server. See Pylons/waitress#399 - Fixed testing of vendored asyncore code to not rely on particular naming for errno's. See Pylons/waitress#397 - HTTP Request methods and versions are now validated to meet the HTTP standards thereby dropping invalid requests on the floor. See Pylons/waitress#423 - No longer close the connection when sending a HEAD request response. See Pylons/waitress#428 - Always attempt to send the Connection: close response header when we are going to close the connection to let the remote know in more instances. Pylons/waitress#429 - Python 3.7 is no longer supported. Add support for Python 3.11, 3.12 and PyPy 3.9, 3.10. See Pylons/waitress#412 - Document that trusted_proxy may be set to a wildcard value to trust all proxies. See Pylons/waitress#431
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Closes #427
When a WSGI application does not return sufficient content to satisfy the attached
Content-Lengthheader, the connection is closed to prevent the client from needlessly waiting. However, HTTP HEAD requests can set aContent-Lengthheader without any content in the body. #7 removed a warning that was incorrectly displayed when this occurs, but the connection was still being closed. As demonstrated in #427, this abrupt close can cause client-side failures. Here, the connection is no longer closed for HEAD requests withContent-Lengthset, which resolves the linked issue.