Lars Bachmann created HTTPCLIENT-1452:
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             Summary: in case of a redirect a wrong host param is set to http 
header
                 Key: HTTPCLIENT-1452
                 URL: https://issues.apache.org/jira/browse/HTTPCLIENT-1452
             Project: HttpComponents HttpClient
          Issue Type: Bug
          Components: HttpClient
            Reporter: Lars Bachmann


The following url will lead to an circular redirect and an 
CircularRedirectException in the end:
http://it.bing.com/

The reason is that http://it.bing.com will redirect to http://www.bing.com but 
the header param "host" is not set to the new host (bing.com), instead the host 
param of the original (it.bing.com) request is used. In the end the redirect 
request will not call http://www.bing.com but instead http://it.bing.com which 
is the same location like the original url and will end up in a circular dead 
lock.

The fix would be after copying all header params from the original request to 
the redirect request, to override the host param with the value of the redirect 
request

The class to adjust is: org.apache.http.impl.client.DefaultRequestDirector.java

The problem is also adressed here:
http://stackoverflow.com/questions/6698214/avoid-circular-redirect-using-httpclient-4-1-1



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