A quick Sanic workaround that doesn't complain about weird HTTP 408 errors that lead to the blank access.log entries

fucking_sanic.py

from sanic.exceptions import RequestTimeout
from sanic.server import HttpProtocol


class NoTimeoutHttpProtocol(HttpProtocol):
    """
    Doesn't complain about request timeouts to the logger.

    Usage:
        app = Sanic()
        app.run(..., protocol=NoTimeoutHttpProtocol)
    """

    def write_error(self, exception):
        if isinstance(exception, RequestTimeout):
            response = self.error_handler.response(self.request, exception)
            version = self.request.version if self.request else '1.1'
            self.transport.write(response.output(version))
            self.transport.close()
        else:
            return super().write_error(exception)