OK, in lack of a better alternative I decided to Curl the Google Doc URL and do some jQuery magic before loading it in an iFrame.
Curl.php
curl_setopt($ch, CURLOPT_URL, $Url);
[...]
$("#header").hide()
$("#footer").hide()
$('a[href^="http://"]').attr("target", "_blank");
Page.html
$("#google_content").html("<iframe width='100%' height='600' frameborder='0' src='http://www.example.com/Curl/Curl.php'></iframe>");
Google, is this really the recommended workaround? ;)
与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…