Content security policy header default src self

- Header set content security policy default src self '
- Add_header content security policy default src self
- Add_header content security policy default src self ' always
- Add_header content security policy default src self nginx
- Header set content security policy default src self apache
- Header always set content security policy default src self
- Header set content security policy default src self unsafe inline
- Header set content security policy default src self htaccess
- Header always append content security policy default src self
- Nodejs add header content security policy default src self ' img src *