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IT35242: WEBSOCKET UPGRADE FAILS IF HTTP RESPONSE CODE IS MANUALLY SET

A fix is available

Fix packs for DataPower Gateway version 10.0.1.x

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APAR status

  • Closed as program error.

Error description

  • The HTTPS Front Side Handler of MPGW is set to "allow websocket
upgrade reqeusts". The Websocket Upgrade requests are processed
and then passed to the backend server. The backend processes
the request successfully and sends HTTP 101 to DP but DP passes
an HTTP 200 to the client.

This can occur if the processing
policy has xml to modify the http response code, similar to
below -

<dp:set-http-response-header
name="'x-dp-response-code'" value="$xResponseCode"/>

Local fix

  • Remove the xml that is changing the http response code.

Problem summary

  • The upgrade will now work even if the response code has been
manually set by the system variable.

Problem conclusion

Temporary fix

  • 



Comments


    

  • 



APAR Information




    

  • APAR number
    IT35242
    • 

  • Reported component name
    DATAPOWER
    • 

  • Reported component ID
    DP1234567
    • 

  • Reported release
    A0X
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Special Attention
    NoSpecatt / Xsystem
    • 

  • Submitted date
    2020-12-11
    • 

  • Closed date
    2021-01-22
    • 

  • Last modified date
    2021-01-22
    • 





    

  • APAR is sysrouted FROM one or more of the following:
    

    • 

  • APAR is sysrouted TO one or more of the following:
    

    • 



Fix information


    

  • Fixed component name
    DATAPOWER
    • 

  • Fixed component ID
    DP1234567
    • 



Applicable component levels


    

  • RA0X  PSY
       UP
    • 








      
              
                            

              

              [{"Line of Business":{"code":"LOB45","label":"Automation"},"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SS9H2Y","label":"IBM DataPower Gateways"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"A0X"}]
              

                          

          
 
        

      

    

      

        

          

            
Document Information


            

            


                        

            Modified date:
            

            30 August 2021
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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