diff --git a/htdocs/public/payment/newpayment.php b/htdocs/public/payment/newpayment.php
index 018d233ade2..207775a3d54 100644
--- a/htdocs/public/payment/newpayment.php
+++ b/htdocs/public/payment/newpayment.php
@@ -805,6 +805,8 @@ if ($action == 'charge' && isModEnabled('stripe')) {
 	dol_syslog("onlinetoken=".$_SESSION["onlinetoken"]." FinalPaymentAmt=".$_SESSION["FinalPaymentAmt"]." currencyCodeType=".$_SESSION["currencyCodeType"]." payerID=".$_SESSION['payerID']." TRANSACTIONID=".$_SESSION['TRANSACTIONID'], LOG_DEBUG, 0, '_payment');
 	dol_syslog("FULLTAG=".$FULLTAG, LOG_DEBUG, 0, '_payment');
 	dol_syslog("error=".$error." errormessage=".$errormessage, LOG_DEBUG, 0, '_payment');
+	dol_syslog("_SERVER[SERVER_NAME] = ".(empty($_SERVER["SERVER_NAME"]) ? '' : dol_escape_htmltag($_SERVER["SERVER_NAME"])), LOG_DEBUG, 0, '_payment');
+	dol_syslog("_SERVER[SERVER_ADDR] = ".(empty($_SERVER["SERVER_ADDR"]) ? '' : dol_escape_htmltag($_SERVER["SERVER_ADDR"])), LOG_DEBUG, 0, '_payment');
 	dol_syslog("Now call the redirect to paymentok or paymentko, URL = ".($error ? $urlko : $urlok), LOG_DEBUG, 0, '_payment');
 
 	if ($error) {
@@ -834,7 +836,7 @@ $conf->dol_hide_leftmenu = 1;
 $replacemainarea = (empty($conf->dol_hide_leftmenu) ? '<div>' : '').'<div>';
 llxHeader($head, $langs->trans("PaymentForm"), '', '', 0, 0, '', '', '', 'onlinepaymentbody', $replacemainarea);
 
-dol_syslog("newpayment.php show page paymentmethod=".$paymentmethod.' amount='.$amount.' newamount='.GETPOST("newamount", 'alpha'), LOG_DEBUG, 0, '_payment');
+dol_syslog("newpayment.php show page source=".$source." paymentmethod=".$paymentmethod.' amount='.$amount.' newamount='.GETPOST("newamount", 'alpha')." ref=".$ref, LOG_DEBUG, 0, '_payment');
 
 // Check link validity
 if ($source && in_array($ref, array('member_ref', 'contractline_ref', 'invoice_ref', 'order_ref', 'donation_ref', ''))) {
@@ -2411,7 +2413,7 @@ if (preg_match('/^dopayment/', $action)) {			// If we choosed/click on the payme
 			} elseif (!empty($conf->global->STRIPE_USE_INTENT_WITH_AUTOMATIC_CONFIRMATION)) {
 				?>
 			// Code for payment with option STRIPE_USE_INTENT_WITH_AUTOMATIC_CONFIRMATION set to 1 or 2
-			
+
 			// Create a Stripe client.
 				<?php
 				if (empty($stripeacc)) {
diff --git a/htdocs/public/payment/paymentok.php b/htdocs/public/payment/paymentok.php
index c56732f5938..6d50d1c8c76 100644
--- a/htdocs/public/payment/paymentok.php
+++ b/htdocs/public/payment/paymentok.php
@@ -167,13 +167,20 @@ $error = 0;
 
 $now = dol_now();
 
-dol_syslog("Callback url when a payment was done. query_string=".(dol_escape_htmltag($_SERVER["QUERY_STRING"]) ?dol_escape_htmltag($_SERVER["QUERY_STRING"]) : '')." script_uri=".(dol_escape_htmltag($_SERVER["SCRIPT_URI"]) ?dol_escape_htmltag($_SERVER["SCRIPT_URI"]) : ''), LOG_DEBUG, 0, '_payment');
+dol_syslog("Callback url when a payment was done. query_string=".(empty($_SERVER["QUERY_STRING"]) ? '' : dol_escape_htmltag($_SERVER["QUERY_STRING"]))." script_uri=".(empty($_SERVER["SCRIPT_URI"]) ? '' : dol_escape_htmltag($_SERVER["SCRIPT_URI"])), LOG_DEBUG, 0, '_payment');
+dol_syslog("_SERVER[SERVER_NAME] = ".(empty($_SERVER["SERVER_NAME"]) ? '' : dol_escape_htmltag($_SERVER["SERVER_NAME"])), LOG_DEBUG, 0, '_payment');
+dol_syslog("_SERVER[SERVER_ADDR] = ".(empty($_SERVER["SERVER_ADDR"]) ? '' : dol_escape_htmltag($_SERVER["SERVER_ADDR"])), LOG_DEBUG, 0, '_payment');
 
 $tracepost = "";
 foreach ($_POST as $k => $v) {
 	$tracepost .= "{$k} - {$v}\n";
 }
 dol_syslog("POST=".$tracepost, LOG_DEBUG, 0, '_payment');
+$tracesession = "";
+foreach ($_SESSION as $k => $v) {
+	$tracesession .= "{$k} - {$v}\n";
+}
+dol_syslog("SESSION=".$tracesession, LOG_DEBUG, 0, '_payment');
 
 $head = '';
 if (!empty($conf->global->ONLINE_PAYMENT_CSS_URL)) {