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Travis CawthornTravis Cawthorn 

Streaming API Spring 14 Change

There seems to be a change in how salesforce handles subscribing to a push topic with the update to Spring 14.  When we try to subscribe to a push topic with Spring 14 we receive a “403:Unknown Client Error”.  We have not had this issue with previous versions of salesforce.

Streaming Api Steps
1. Authenticate to Salesforce - Success
2. Preform Handshake with Salesforce – Success
3. Subscribe to a Push Topic – Error

Language
C#

The error that we receive is a 403: Unknown Client error. There is no additional information that is passes back in the response.   Why would we receive a 403:Unknown client error.
AmitAmit (Salesforce Developers) 
Hello,

This is a know Issue in salesforce and update and workaround  on this can be found at following link

https://success.salesforce.com/issues_view?id=a1p30000000T0F0AAK
Ben EdwardsBen Edwards
Hi Travis, were you able to resolve this issue? I am getting the same error when connecting via Python and I can't get the workaround working.

Any advice would be appreciated, thanks.