Apache2 and mod_wsgi: Truncated or oversized response headers received from daemon process

apache flask apache2 mod-wsgi

I may have a tweak. I had this problem but now it's working somehow.

I tried to run mod_wsgi as a daemon. My application didn't work and I had this error message in the logs.
however running mod_wsgi as non-daemon worked, for instance
```
python manage.py runmodwsgi --reload-on-changes # for Django
```
So I once again launched it then killed it.
my app is still running :)

(mod_wsgi 4.4.[1-13], apache2, python 2.7, Django 1.7, Debian8 fresh install, with or without virtualenv)

CodeHunter