private function compileCSPRO()
    {
        # Filter out the blacklisted directives
        $filteredConfig = array_diff_key(
            $this->csproConfig,
            array_flip($this->csproBlacklist)
        );

        return self::compile($filteredConfig);
    }
private function compileCSPRO()
    {
        # Filter out the blacklisted directives
        $filteredConfig = array_diff_key(
            $this->csproConfig,
            array_flip($this->csproBlacklist)
        );

        return self::compile($filteredConfig);
    }
private function compileCSPRO ( ) { # Filter out the blacklisted directives $ filteredConfig = array_diff_key ( $ this -> csproConfig , array_flip ( $ this -> csproBlacklist ) ) ; return self :: compile ( $ filteredConfig ) ; }
Compile internal CSPRO config into a CSP header-value string

@return string
Compile internal CSPRO config into a CSP header - value string