[TLS] W3C Content Transformation Proxies guidelines and security

[Francois Daoust <fd at w3.org>]

Hi TLS working group,

I'm writing this email on behalf of the W3C Content Transformation task 
force of the W3C Mobile Web Best Practices Working Group. I apologize 
for the length of the email, but thought it was better to introduce the 
context that triggered this message before actually coming to the point. 
I actually tried to keep it short and may go into more details if needed!


Context
-------
The Mobile World is a highly fragmented place: many mobile devices are 
available with many different capabilities, both in terms of hardware 
and software, that may be used in different networks (e.g. UMTS, Wifi) 
with different costs, both in terms of money, bandwidth and latency.

Most Web pages don't display well, if at all, on many mobile devices. To 
enable the access to as many Web pages as possible, several mobile 
network operators introduced content transformation proxies on their 
networks to re-structure Web pages on the fly so that they match the 
end-user's device capabilities.

Re-structuring Web pages creates a number of problems that I won't 
detail here (save the one on security). The Content Transformation Task 
Force was created to define a set of guideak�ke��.�Ǭ����㜷���<E�sڶe��.�Ǭ���:���v�N�e��܆+މ��zX�z��N����e��܆+�������E��&��q�a��۽4ռ����jk%r�����"�13����N�9��5ߎ8����)ڕ:-������`ޖ+ޭ��r������E��&���,�ZjXh���o'(����c����D�L����e��{v��W(�8n�M<Ӟw���ub�����j�j֦�W(�t�jaejN]*Z�'(������z�Z�+Z����