request #6808 - Page leave detection not well managed in not FlamingParrot themes

Change-Id: I264b630ec505d4734eecc6388652b10b5c5e0507
Merge commit 'refs/changes/80/2380/2' of ssh://gerrit.tuleap.net:29418/tuleap into tuleap-stable-master

* ssh://gerrit.tuleap.net:29418/tuleap:
  request #6808 - Page leave detection not well managed in not FlamingParrot themes

Change-Id: I7376939d3275dada36f8be7e51f24e7386adb6da
Tuleap 6.12.99.110

Change-Id: I2fa6e96d79e3011f190f40cbe2bdd31bae2ade7d