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image can't be downloaded from sharepoint server using libcurl (c++ code): HTTP/1.1 503 Service Unavailable

From: RHAIEM, Mohamed Slim via curl-library <>
Date: Fri, 24 Nov 2017 11:26:21 +0000


I'm using libcurl with C++ code in order to get locally some images based on their URL.
This is working with different kinds of images but not when deployed in a sharepoint server: in that case I'm receiving the following message:
< HTTP/1.1 503 Service Unavailable
< Cache-Control: no-cache
< Pragma: no-cache
< Content-Type: text/html; charset=utf-8
< Proxy-Connection: Keep-Alive
< Connection: Keep-Alive
< Content-Length: 8703

This happens with different servers each time I'm using sharepoint.

Could you please help?

Best Regards,

Received on 2017-11-24