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Disabling the Expect 100 HTTP Header

From: Leigh Mahoney <>
Date: Tue, 21 Jun 2005 14:45:21 +1000



I have had some problems with posting data to a web server that has a bad
or non supported implementation of the 100 Continue message. I have
disabled this behaviour by using -H "Expect:" , and this works well.


I also use the -o switch to write output to a file (this I use to check
for success). Since I have implemented the fix however I never seem to get
any output by using the -o switch. I was expecting maybe a HTTP/1.1 200 OK
to be written to the output file (as previously without the -H "Expect:"
command I was seeing 'HTTP/1.1 100 Continue' being outputted to that file.


Are there other ways to determine the success of your POST in a scripted
environment, or am I doing something wrong here?


Using cURL 7.14.0 on Win32




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Received on 2005-06-21