Function is_unsafe

modules/http2/h2_util.c:1510–1514

#if AP_HAS_RESPONSE_BUCKETS

static int is_unsafe(ap_bucket_response *h)
{
    const char *v = h->notes? apr_table_get(h->notes, H2_HDR_CONFORMANCE) : NULL;
    return (v && !strcmp(v, H2_HDR_CONFORMANCE_UNSAFE));
}

apr_status_t h2_res_create_ngtrailer(h2_ngheader **ph, apr_pool_t *p,
                                    ap_bucket_headers *headers)