Add_header content security policy

- Add_header content security policy upgrade insecure requests '
- Add_header content security policy frame ancestors
- Add_header content security policy default src self
- Add_header content security policy upgrade insecure requests nginx
- Add_header content security policy frame ancestors self
- Add_header content security policy default src self ' always
- Add_header content security policy default src
- Add_header content security policy report only
- Add_header content security policy frame ancestors none
- Add_header content security policy frame ancestors nginx
- Add_header content security policy default src self nginx
- Add_header content security policy connect src
- Add_header content security policy script src
- Add_header content security policy always