static const char* oidc_util_hdr_in_get(const request_rec *r, const char *name) {
	const char *value = apr_table_get(r->headers_in, name);
	if (value)
		oidc_debug(r, "%s=%s", name, value);
	return value;
}
static const char* oidc_util_hdr_in_get(const request_rec *r, const char *name) {
	const char *value = apr_table_get(r->headers_in, name);
	if (value)
		oidc_debug(r, "%s=%s", name, value);
	return value;
}