[Z34 bug] Corrupt content error in webgui

[robb]

I have Zentyal 3.4 beta installed with only networking modules installed. Several times I notice the following error message:

Corrupted Content Error

The page you are trying to view cannot be shown because an error in the data transmission was detected.

The page you are trying to view cannot be shown because an error in the data transmission was detected.

    Please contact the website owners to inform them of this problem.

This happens when installing a new module or updating settings through the webgui. It looks like NGinX is acting..... weird...

After the error occured I have to alter the url to https://ipofzentyal:alternativeport to get back to the Dashboard.

[christian]

Does it occur while accessing one of the network related section ?
I remember one of these actions returns link with missing "s" letter in URL 

[robb]

It has nothing to do with a missing s (in https?) since I only have to delete the extending service in the url so the browser reverts to the Dashboard. I don't add an 's'