The problem was solved without good explanation.
Certainly,  a trial with bad nginx configuration did lead to a bad version of  jquery.placeholder-1.1.9.js in browser cache.
After correction of nginx configuration, emptying browser cache did correct the problem.

On 09/03/2015 12:05 PM, Pierre Couderc wrote:
Yes, thank you help me to think correctly.
Now I have to find why it loads one and the the other..

On 09/03/2015 12:00 PM, Ján Máté wrote:
As you see your problem is not related to CalDavZAP - you must check your web server documentation/configuration.

It not works only because the source code is not loaded from the server.


On 03 Sep 2015, at 11:56, Pierre Couderc <> wrote:

Strange, I have checked that jquery.placeholder-1.1.9.js exists and has not been modified (dated 16 mars 00:27).