If status line not set for some reason, set it.
@@ -12597,6 +12597,9 @@ static apr_status_t wsgi_header_filter(ap_filter_t *f, apr_bucket_brigade *b)
/* Output status line. */
+ if (!r->status_line)
+ r->status_line = ap_get_status_line(r->status);
+
vec1[0].iov_base = (void *)"Status:";
vec1[0].iov_len = strlen("Status:");
vec1[1].iov_base = (void *)" ";
