php curl proxy +跟随重定向

Question

i'm sending a curl request to a webpage that redirects 3 times

when i use

curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);

it works well and responses with the last url & body in the third redirect ..

but when i use proxy

curl_setopt($ch, CURLOPT_PROXY, $host);
curl_setopt($ch, CURLOPT_PROXYPORT, $port);

the CURLOPT_FOLLOWLOCATION doesn't work or i don't know .. the request doesn't go to the third url ..

any idea why this is happening ?

note that the url uses https connection and i use

curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0); 

to bypass it ..

any idea why this is happening ?