Opera Mobile Classic mysterious header
Why the [b]X-EBO-UA:[/b] header is sent by Opera Mobile Classic ? The [i]BCReq[/i] value change with every site and for the same site, every time the browser is closed and opened again... Undocumented, it look like a hash of a request but it can also be seen as a privacy infringement... [attachment=22]wtf_x_ebo_ua_opera_classic.jpg[/attachment] Attachments: [img]https://forum.vivaldi.net/uploads/attachments/475/wtf_x_ebo_ua_opera_classic.jpg[/img]
Just received a quick reply from Opera Software staff :
This header is parsed by Bytemobile proxy when used in partnership with some ISP. "Not sure how widespread EBO currently is now though".
Opera Mobile support this feature since 2006 : http://www.operasoftware.com/press/releases/desktop/bytemobile-and-opera-software-form-partnership-for-browser-optimization
Related "bytemobile" opera:config options allow to disable all proxy usage.