When using Opera 11.52, after I login to my Zoho Mail account, the browser reports the connection as insecure because "The server attempted to apply security measures, but failed."

Strangely, if I use https://m.zoho.com, I can login to my email and Opera reports the connection as secure.

If I  disable javascript, then Opera reports the non-mobile page as secure, but I lose all functionality of my email!

So why is Zoho's use of javascript causing Opera to report an insecure connection, but only for the non-mobile email? With or without javascript enabled, the mobile version works and it is reported as a secure connection.

In summary:

* Zoho non-mobile, with javascript:

Opera reports the connection is insecure

* Zoho non-mobile, without javascript:

Opera reports the connection is secure, but I cannot use any features

* Zoho mobile, with javascript:

Opera reports the connection is secure

* Zoho mobile, without javascript:

Opera reports the connection is secure, but the layout looks different