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Notes & Warnings

For more information about managing site access, see Managing Web HTTPS site access in Content Manager Online Help.

If not using an on-premises solution but instead are Cloud, see Web enabled applications fail to initiate session or display logon prompt such as Webex and GoToMeeting in Cloud.

Problem Description

When a user attempts to join a WebEx session, the browser does not complete the connection.


WebEx does not support HTTPS connections through a proxy. However, there are several easy workarounds.

Option 1a: Add the Category "Information Technology: Web Collaboration" to SSL decryption bypass list.

In Forcepoint Web Security Manager, Select the "Settings" tab, then expand "Scanning" and click on "SSL Decryption Bypass."
  1. Now expand the "Information Technology" section, check the "Web Collaboration" category, and click the arrow to move it into the right-hand pane to specify that the category will be exempt from decryption.
  2. Click OK and finally click Save and Deploy.
Option 1b: Add the WebEx URL to the proxy incident list to tunnel WebEx.
  1. In Content Manager, go to Configure > SSL > Incidents > Add a Website.
  2. Add: *.webex.com to the incident list.
  3. Select By URL.
  4. In the Action drop-down list, select Tunnel.
  5. Click Save.

Option 2: If Websense Content Gateway is an explicit proxy that uses a PAC file:

Add an entry for WebEx in the exceptions block of your PAC file:

if (shExpMatch(url, "*.webex.com/*")) {return "DIRECT";}

Option 3: If Websense Content Gateway is an explicit proxy that does not use a PAC file:

On each client, add an exception to the proxy settings list.

The following steps are for Microsoft Windows systems only. For other systems, consult your operating system and browser documentation.

On Windows systems, the following configuration works for all browsers because the WebEx client uses the values stored in Internet Options > LAN Settings > Proxy Settings.

  1. Open the Windows Control Panel and select Internet Options.
  2. Select the Connection tab and click LAN Settings.
  3. In the Proxy server area, click Advanced.
  4. In the Exceptions entry field add: *.webex.com
  5. Click OK; repeat until Internet Options is closed.
  6. Close and reopen any open browsers.

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