    def __call__(self, environ, start_response):
        """Run the middleware and then call the original WSGI application."""

        if environ['REQUEST_METHOD'] == 'GET':
            try:
                del environ['CONTENT_TYPE']
            except KeyError:
                pass
            else:
                logger.debug('Remove header "Content-Type" from GET request')
        return self.app(environ, start_response)
Run the middleware and then call the original WSGI application.
bigchaindb/web/strip_content_type_middleware.py