Oups, here is what i get after the "Curl call" :
<!DOCTYPE html>
<html>
<head><meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1" />
<title>Dropbox - 404</title>
<link href="https://cfl.dropboxstatic.com/static/metaserver/static/css/error.css" rel="stylesheet" type="text/css"/>
<link rel="shortcut icon" href="https://cfl.dropboxstatic.com/static/images/favicon.ico"/>
</head>
<body>
<div class="figure">
<img src="https://assets.dropbox.com/www/en-us/illustrations/spot/look-magnifying-glass.svg" alt="Error: 404"/>
</div>
<div id="errorbox">
<div class="not-found"> <h1>Error (404)</h1> We can't find the page you're looking for. <div class="not-found--links"> Here are a few links that may be helpful: <ul> <li><a href="https://www.dropbox.com/home?_tk=fof">Home</a></li> <li><a href="https://www.dropbox.com/help?_tk=fof">Help center</a></li> <li><a href="https://www.dropbox.com/login?_tk=fof">Sign in</a></li> <li><a href="https://www.dropbox.com/register?_tk=fof">Get a free account</a></li> <li><a href="https://www.dropbox.com/plus?_tk=fof">Dropbox Plus</a></li> <li><a href="https://www.dropbox.com/business?_tk=fof">Dropbox Business</a></li> </ul> </div> </div>
</div>
</body>
</html>
curl: (3) URL rejected: Port number was not a decimal number between 0 and 65535
curl: (3) URL rejected: Bad hostname
curl: (3) URL rejected: Bad hostname