Cisco Cisco Web Security Appliance S670 Guide De Dépannage

WSA Warning, Acknowledgement, and EUN Pages
Do Not Display Correctly for Explicit HTTPS
Requests

Document ID: 117805

Contributed by Kei Ozaki and Zack Shaikh, Cisco TAC Engineers.
Jun 12, 2014

Contents

Introduction
Prerequisites
Requirements
Components Used
Problem
Solution

Introduction

This document describes a problem that is encountered on the Cisco Web Security Appliance (WSA) when
the Warning, Acknowledgement, or End User Notification (EUN) pages do not display correctly for explicit
HTTPS requests. A workaround for this problem is also provided.

Prerequisites

Requirements

The information in this document assumes that:

The WSA proxy addresses are deployed in Explicit mode.

•

The HTTPS requests are either blocked, warned, or require user acknowledgement.

•

Components Used

The information in this document is based on the Cisco WSA.

The information in this document was created from the devices in a specific lab environment. All of the
devices used in this document started with a cleared (default) configuration. If your network is live, make sure
that you understand the potential impact of any command.

Problem

The Warning, Acknowledgement, or EUN pages do not display correctly for explicit HTTPS requests. The
browser displays an incomplete notification page, or it does not display the page at all and instead displays an
error page.

There are several issues that surround these pages when you use explicit HTTPS requests. When you
configure your browser to use a proxy, HTTPS traffic is directed to the WSA over HTTP. This request is