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WhatsApp Web Not working in version 7.3.6.1 and above

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Article ID: 238579

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Updated On:

Products

SG-S400

Issue/Introduction

After upgrade to 7.3.6.1 and whatsapp update  - whatsapp stops to work.

Cause

Upgrade SG OS to 7.3.6.1 and above. 

Environment

Customer not able to use whats app web after the upgrade to 7.3.6.1 and also update is not working.  Issue exists with the version 7.3.6.1 and 7.3.7.1 as well

Bug SG-30945 is also been reported for the issue 

 

 

Resolution

Workaround

To Disable HTTP2 on the proxy for the whatsapp domain. We can use the below CPL policy.

 <proxy>
client.connection.ssl_server_name.substring=.whatsapp.com http2.client.accept(no) http2.server.request(no)

Make sure you clear the browser history before the TEST

To disable HTTP on the client machine

Disable HTTP/2 protocol in your browsers to allow the ProxySG appliance to load the webpage.

Chrome:

  • Create a shortcut with the following target in order to disable the HTTP2 flag (location might change depending on the OS):

"C:\Program Files (x86)\Google\Chrome\Application\chrome.exe" --disable-http2

Firefox:

  • In the address bar, enter: about:config
  • In the list of commands, find network.http.spdy.enabled.http2
  • Set network.http.spdy.enabled.http2  to false

Internet Explorer:

  • Select Tools > Internet Options > Advanced.
  • Under HTTP settings, clear the Use HTTP/2 check box.