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Http status 417: expectation failed

June 30, 2010 Leave a comment Go to comments
An interesting problem I found when calling a web service was this error:

Http status 417: expectation failed

Reading posts on the net said this could be a proxy problem, but I wasn’t using a proxy, so this wasn’t it. The solution appeared
as this little gem:

ServicePointManager.Expect100Continue = false;

 

I guess the server must have responded with a HTTP 100, which was not expected by the client, or vice versa. The Webservice
itself appeared to be hosted on a non-.net platform.

Categories: Uncategorized
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