Merge pull request #18993 from giant-rabbit/153-fix-paypal-redirect

financial#153 Fix redirect to PayPal

CRM/Core/Payment/PayPalImpl.php

@@ -843,9 +843,10 @@ class CRM_Core_Payment_PayPalImpl extends CRM_Core_Payment {
     }
     $this->_component = $params['component'];
     $token = $this->setExpressCheckOut($params);
+    $siteUrl = rtrim($this->_paymentProcessor['url_site'], '/');
     return [
       'pre_approval_parameters' => ['token' => $token],
-      'redirect_url' => $this->_paymentProcessor['url_site'] . "/cgi-bin/webscr?cmd=_express-checkout&token=$token",
+      'redirect_url' => $siteUrl . "/cgi-bin/webscr?cmd=_express-checkout&token=$token",
     ];
   }